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Color difference

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7075: 4285: 6489: 3534: 6452: 7070:{\displaystyle \Delta H^{\prime }=2{\sqrt {C_{1}^{\prime }C_{2}^{\prime }}}\sin(\Delta h^{\prime }/2),\quad {\bar {H}}^{\prime }={\begin{cases}(h_{1}^{\prime }+h_{2}^{\prime })/2&\left|h_{1}^{\prime }-h_{2}^{\prime }\right|\leq 180^{\circ }\\(h_{1}^{\prime }+h_{2}^{\prime }+360^{\circ })/2&\left|h_{1}^{\prime }-h_{2}^{\prime }\right|>180^{\circ },h_{1}^{\prime }+h_{2}^{\prime }<360^{\circ }\\(h_{1}^{\prime }+h_{2}^{\prime }-360^{\circ })/2&\left|h_{1}^{\prime }-h_{2}^{\prime }\right|>180^{\circ },h_{1}^{\prime }+h_{2}^{\prime }\geq 360^{\circ }\end{cases}}} 4280:{\displaystyle {\begin{aligned}\Delta L^{*}&=L_{1}^{*}-L_{2}^{*},\\C_{1}^{*}&={\sqrt {{a_{1}^{*}}^{2}+{b_{1}^{*}}^{2}}},\\C_{2}^{*}&={\sqrt {{a_{2}^{*}}^{2}+{b_{2}^{*}}^{2}}},\\\Delta C^{*}&=C_{1}^{*}-C_{2}^{*},\\\Delta H^{*}&={\sqrt {{\Delta E_{ab}^{*}}^{2}-{\Delta L^{*}}^{2}-{\Delta C^{*}}^{2}}}={\sqrt {{\Delta a^{*}}^{2}+{\Delta b^{*}}^{2}-{\Delta C^{*}}^{2}}},\\\Delta a^{*}&=a_{1}^{*}-a_{2}^{*},\\\Delta b^{*}&=b_{1}^{*}-b_{2}^{*},\\S_{L}&=1,\\S_{C}&=1+K_{1}C_{1}^{*},\\S_{H}&=1+K_{2}C_{1}^{*},\\\end{aligned}}} 6032: 9884: 6447:{\displaystyle \Delta h'={\begin{cases}h_{2}^{\prime }-h_{1}^{\prime }&\left|h_{1}^{\prime }-h_{2}^{\prime }\right|\leq 180^{\circ }\\h_{2}^{\prime }-h_{1}^{\prime }+360^{\circ }&\left|h_{1}^{\prime }-h_{2}^{\prime }\right|>180^{\circ },h_{2}^{\prime }\leq h_{1}^{\prime }\\h_{2}^{\prime }-h_{1}^{\prime }-360^{\circ }&\left|h_{1}^{\prime }-h_{2}^{\prime }\right|>180^{\circ },h_{2}^{\prime }>h_{1}^{\prime }\end{cases}}} 7860: 9894: 9258: 5808: 4837: 1558: 5518: 1107:: a color space in which equivalent numerical differences represent equivalent visual differences, regardless of location within the color space. A truly uniform color space has been the goal of color scientists for many years. Most color spaces, though not perfectly uniform, are referred to as uniform color spaces, since they are more nearly uniform when compared to the chromaticity diagram. 5233: 3088: 1072: 2825: 2558: 5524: 5239: 4541: 3525: 617: 7565: 4944: 2831: 7352: 843: 834: 2564: 5986: 2313: 1700:
The CIE 1976 color difference formula is the first formula that related a measured color difference to a known set of CIELAB coordinates. This formula has been succeeded by the 1994 and 2000 formulas because the CIELAB space turned out to be not as perceptually uniform as intended, especially in the
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CIELAB and CIELUV are relatively perceptually-uniform color spaces and they have been used as spaces for Euclidean measures of color difference. The CIELAB version is known as CIE76. However, the non-uniformity of these spaces were later discovered, leading to the creation of more complex formulae.
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There have been many attempts to weigh RGB values to better fit human perception, where the components are commonly weighted (red 30%, green 59%, and blue 11%), however, these are demonstrably worse at color determinations and are properly the contributions to the brightness of these colors, rather
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with the hue represented as a circle, placing the various colors within a three-dimensional space of either a cylinder or cone, but most of these are just modifications of RGB; without accounting for differences in human color perception, they will tend to be on par with a simple Euclidean metric.
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alone) has two parameters: lightness (l) and chroma (c), allowing the users to weight the difference based on the ratio of l:c that is deemed appropriate for the application. Commonly used values are 2:1 for acceptability and 1:1 for the threshold of imperceptibility.
7135: 2060: 7780: 624: 5803:{\displaystyle {\bar {C}}^{\prime }={\frac {C_{1}^{\prime }+C_{2}^{\prime }}{2}}{\mbox{ and }}\Delta {C'}=C'_{2}-C'_{1}\quad {\mbox{where }}C_{1}^{\prime }={\sqrt {a_{1}^{'^{2}}+b_{1}^{*^{2}}}}\quad C_{2}^{\prime }={\sqrt {a_{2}^{'^{2}}+b_{2}^{*^{2}}}}\quad } 5513:{\displaystyle a_{1}^{\prime }=a_{1}^{*}+{\frac {a_{1}^{*}}{2}}\left(1-{\sqrt {\frac {{\bar {C}}^{7}}{{\bar {C}}^{7}+25^{7}}}}\right)\quad a_{2}^{\prime }=a_{2}^{*}+{\frac {a_{2}^{*}}{2}}\left(1-{\sqrt {\frac {{\bar {C}}^{7}}{{\bar {C}}^{7}+25^{7}}}}\right)} 4832:{\displaystyle \Delta E_{00}^{*}={\sqrt {\left({\frac {\Delta L'}{k_{L}S_{L}}}\right)^{2}+\left({\frac {\Delta C'}{k_{C}S_{C}}}\right)^{2}+\left({\frac {\Delta H'}{k_{H}S_{H}}}\right)^{2}+R_{T}{\frac {\Delta C'}{k_{C}S_{C}}}{\frac {\Delta H'}{k_{H}S_{H}}}}}} 5814: 1542: 1338: 5228:{\displaystyle {\bar {L}}={\frac {L_{1}^{*}+L_{2}^{*}}{2}}\quad {\bar {C}}={\frac {C_{1}^{*}+C_{2}^{*}}{2}}\quad {\mbox{where }}C_{1}^{*}={\sqrt {{a_{1}^{*}}^{2}+{b_{1}^{*}}^{2}}},\quad C_{2}^{*}={\sqrt {{a_{2}^{*}}^{2}+{b_{2}^{*}}^{2}}},\quad } 7880:, then the answer is simply "the set of points whose distance to the reference is less than the just-noticeable-difference (JND) threshold". This requires a perceptually uniform metric in order for the threshold to be constant throughout the 261: 3083:{\displaystyle F={\sqrt {\frac {C_{1}^{*^{4}}}{C_{1}^{*^{4}}+1900}}}\quad T={\begin{cases}0.56+|0.2\cos(h_{1}+168^{\circ })|&164^{\circ }\leq h_{1}\leq 345^{\circ }\\0.36+|0.4\cos(h_{1}+35^{\circ })|&{\mbox{otherwise}}\end{cases}}} 1067:{\displaystyle {\begin{aligned}{\bar {r}}&={\frac {1}{2}}(R_{1}+R_{2}),\\\Delta C&={\sqrt {\left(2+{\frac {\bar {r}}{256}}\right)\Delta R^{2}+4\Delta G^{2}+\left(2+{\frac {255-{\bar {r}}}{256}}\right)\Delta B^{2}}}.\end{aligned}}} 414: 2820:{\displaystyle S_{L}={\begin{cases}0.511&L_{1}^{*}<16\\{\frac {0.040975L_{1}^{*}}{1+0.01765L_{1}^{*}}}&L_{1}^{*}\geq 16\end{cases}}\quad S_{C}={\frac {0.0638C_{1}^{*}}{1+0.0131C_{1}^{*}}}+0.638\quad S_{H}=S_{C}(FT+1-F)} 1155:
was introduced, since CIEDE2000 was not adequate for it: CIEDE2000 is not reliable below 1 cd/m and has not been verified above 100 cd/m; in addition, even in BT.709 blue primary CIEDE2000 is underpredicting the error.
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allows quantified examination of a notion that formerly could only be described with adjectives. Quantification of these properties is of great importance to those whose work is color-critical. Common definitions make use of the
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This will work in cases when a single color WAS to be compared to a single color and the need is to simply know whether a distance is greater. If these squared color distances are summed, such a metric effectively becomes the
7842:. The maximum discontinuity happens when the hues of two sample colors are about 180° apart, and is usually small relative to ΔE (less than 4%). There is also a negligible amount of discontinuity from hue rollover. 2553:{\displaystyle \Delta E_{CMC}^{*}={\sqrt {\left({\frac {L_{2}^{*}-L_{1}^{*}}{l\times S_{L}}}\right)^{2}+\left({\frac {C_{2}^{*}-C_{1}^{*}}{c\times S_{C}}}\right)^{2}+\left({\frac {\Delta H_{ab}^{*}}{S_{H}}}\right)^{2}}}} 79:, the standard means of determining distances is the Euclidean distance. If one presently has an RGB (red, green, blue) tuple and wishes to find the color difference, computationally one of the easiest is to consider 1873: 3108:
The CIE 1976 color difference definition was extended to address perceptual non-uniformities, while retaining the CIELAB color space, by the introduction of application-specific parametric weighting factors
3520:{\displaystyle \Delta E_{94}^{*}={\sqrt {\left({\frac {\Delta L^{*}}{k_{L}S_{L}}}\right)^{2}+\left({\frac {\Delta C^{*}}{k_{C}S_{C}}}\right)^{2}+\left({\frac {\Delta H^{*}}{k_{H}S_{H}}}\right)^{2}}},} 4938: 7571: 1645:
color space have led to the CIE refining their definition over the years, leading to the superior (as recommended by the CIE) 1994 and 2000 formulas. These non-uniformities are important because
3539: 848: 629: 612:{\displaystyle {\begin{cases}{\sqrt {2\Delta R^{2}+4\Delta G^{2}+3\Delta B^{2}}},&{\bar {R}}<128,\\{\sqrt {3\Delta R^{2}+4\Delta G^{2}+2\Delta B^{2}}}&{\text{otherwise}},\end{cases}}} 7560:{\displaystyle S_{L}=1+{\frac {0.015\left({\bar {L}}-50\right)^{2}}{\sqrt {20+{\left({\bar {L}}-50\right)}^{2}}}}\quad S_{C}=1+0.045{\bar {C}}^{\prime }\quad S_{H}=1+0.015{\bar {C}}^{\prime }T} 1866: 1786: 5998:
which usually has a range from −π to π radians; color specifications are given in 0 to 360 degrees, so some adjustment is needed. The inverse tangent is indeterminate if both
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formulae are originally designed to have the difference of 1.0 stand for a JND. This convention is generally followed by other perceptual distance functions such as the aforementioned
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Sharma, Gaurav; Wu, Wencheng; Dalal, Edul N. (February 2005). "The CIEDE2000 color-difference formula: Implementation notes, supplementary test data, and mathematical observations".
7347:{\displaystyle T=1-0.17\cos({\bar {H}}^{\prime }-30^{\circ })+0.24\cos(2{\bar {H}}^{\prime })+0.32\cos(3{\bar {H}}^{\prime }+6^{\circ })-0.20\cos(4{\bar {H}}^{\prime }-63^{\circ })} 270: 4489: 1399: 7812: 829:{\displaystyle {\begin{aligned}\Delta R&=R_{1}-R_{2},\\\Delta G&=G_{1}-G_{2},\\\Delta B&=B_{1}-B_{2},\\{\bar {R}}&={\frac {1}{2}}(R_{1}+R_{2}).\end{aligned}}} 7927:
in the automotive industry is rather stringent, often less than 0.5 under D65/10. In printing, the typical limit is 2.0 under D50, though some processes require up to 5.0.
5981:{\displaystyle h_{1}^{\prime }={\text{atan2}}(b_{1}^{*},a_{1}^{\prime })\mod 360^{\circ },\quad h_{2}^{\prime }={\text{atan2}}(b_{2}^{*},a_{2}^{\prime })\mod 360^{\circ }} 8010: 7840: 8042: 4438: 4402: 4366: 2164: 1117:
A uniform color space is supposed to make a simple measure of color difference, usually Euclidean, "just work". Color spaces that improve on this issue include
7914:. Increasing the weighting factor in the aforementioned distance expressions has the effect of increasing the size of the ellipsoid along the respective axis. 8771:
Melgosa, M.; Quesada, J. J.; Hita, E. (December 1994). "Uniformity of some recent color metrics tested with an accurate color-difference tolerance dataset".
7126:(no divide by 2; essentially, if one angle is indeterminate, then use the other angle as the average; relies on indeterminate angle being set to zero). See 8685: 8137: 9510: 427:
than to the degree to which human vision has less tolerance for these colors. The closer approximations would be more properly (for non-linear
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When we wish to calculate distance from the first point to the third point (i.e. changing more than one of the color values), we can do this:
4877: 1649:. CIELAB metric is used to define color tolerance of CMYK solids. A good metric should take this into account in order for the notion of a " 1392:
The Euclidean measure is known to work poorly on large color distances (i.e. more than 10 units in most systems). A hybrid approach where a
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concerns the question "What is a set of colors that are imperceptibly/acceptably close to a given reference?" If the distance measure is
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Li, Changjun; Li, Zhiqiang; Wang, Zhifeng; et al. (December 2017). "Comprehensive color solutions: CAM16, CAT16, and CAM16-UCS".
3158:(1994) is defined in the L*C*h* color space and likewise violates symmetry, therefore defining a quasimetric. Given a reference color 8298: 8160:. BT Series: Broadcasting service (television). International Telecommunication Union. January 2019. Recommendation ITU-R BT.2124-0. 9661: 1593: 7917:
The definition of "acceptably close" also depends on the industrial requirements and practicality. In the automotive industry the
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Abasi, Saeedeh; Amani Tehran, Mohammad; Fairchild, Mark D. (April 2020). "Distance metrics for very large color differences".
7130:, eqn. 7 and p. 23 stating most implementations on the Internet at the time had "an error in the computation of average hue". 8510: 8407: 17: 2055:{\displaystyle \Delta E_{ab}^{*}={\sqrt {(L_{2}^{*}-L_{1}^{*})^{2}+(a_{2}^{*}-a_{1}^{*})^{2}+(b_{2}^{*}-b_{1}^{*})^{2}}}.} 265:
When the result should be computationally simple as well, it is often acceptable to remove the square root and simply use
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may be insignificant between two colors in one part of the color space while being significant in some other part.
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Sharma, Wu, and Dalal has provided some additional notes on the mathematics and implementation of the formula.
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issue, the CIE refined their definition with the CIEDE2000 formula published in 2001, adding five corrections:
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Colorimetry - Part 4: CIE 1976 L*a*b* Colour Space (Report). Draft Standard. CIE. 2007. CIE DS 014-4.3/E:2007.
8130: 2066: 9732: 7775:{\displaystyle R_{T}=-2{\sqrt {\frac {{\bar {C}}'^{7}}{{\bar {C}}'^{7}+25^{7}}}}\sin \left^{2}\right)\right]} 2242: 2173: 8085: 7899:
denoting the tolerance contours vary in size. It is partly this non-uniformity that led to the creation of
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saturated regions. This means that this formula rates these colors too highly as opposed to other colors.
1646: 1537:{\textstyle \Delta E_{\text{HyAB}}={\sqrt {(a_{2}-a_{1})^{2}+(b_{2}-b_{1})^{2}}}+\left|L_{2}-L_{1}\right|} 9535: 9195: 8969: 8747: 3093: 2124: 1333:{\displaystyle \Delta E_{\text{ITP}}=720{\sqrt {(I_{1}-I_{2})^{2}+(T_{1}-T_{2})^{2}+(P_{1}-P_{2})^{2}}},} 8527: 838:
One of the better low-cost approximations, sometimes called "redmean", combines the two cases smoothly:
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corresponds to the arithmetic mean of the chord lengths of the equal chroma circles of the two colors.
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CIEDE 2000 is not mathematically continuous. The discontinuity stems from calculating the mean hue
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is scaled so that a value of 1 indicates the potential of a just noticeable color difference. The Δ
1152: 256:{\displaystyle {\text{distance}}={\sqrt {(R_{2}-R_{1})^{2}+(G_{2}-G_{1})^{2}+(B_{2}-B_{1})^{2}}}.} 9764: 9717: 9707: 9702: 9697: 7976: 56: 8585: 1680:. However, further experimentation may invalidate this design assumption, the revision of CIE76 1181:, but XYZ is also available in the standard. The formula is a simply scaled Euclidean distance: 9722: 8015: 8207: 9928: 9646: 9401: 8945: 8866: 4500: 1631: 1572: 9120: 8494: 8273: 409:{\displaystyle {\text{distance}}^{2}=(R_{2}-R_{1})^{2}+(G_{2}-G_{1})^{2}+(B_{2}-B_{1})^{2}.} 9918: 9619: 9302: 9290: 8782: 8600: 7888: 7864: 7817: 4416: 4380: 4344: 2142: 7910:
More generally, if the lightness is allowed to vary, then we find the tolerance set to be
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The formulae below should use degrees rather than radians; the issue is significant for
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Please expand the section to include this information. Further details may exist on the
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A very simple example can be given between the two colors with RGB values (0, 64, 0) (
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There are a number of color distance formulae that attempt to use color spaces like
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Sharma, Gaurav; Wu, Wencheng; Dalal, Edul N.; Celik, Mehmet U. (1 January 2004).
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Compensation for neutral colors (the primed values in the L*C*h differences)
9607: 9570: 9563: 9369: 9352: 9344: 9285: 9277: 9140: 8984: 8802: 8763: 1635: 1619: 47: 9744: 9602: 9379: 9374: 9238: 9207: 9173: 9078: 8974: 8940: 8794: 8623:"Mathematical Discontinuities in CIEDE2000 Color Difference Computations" 7970: 7966: 5990:
The inverse tangent (tan) can be computed using a common library routine
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are usually both set to unity, and the parametric weighting factors
9869: 9592: 9200: 420: 9257: 9641: 8923: 7896: 1630:; German for "sensation". Use of this term can be traced back to 1557: 9864: 9467: 9457: 8858: 7904: 7900: 2131:. Named after the developing committee, their metric is called 1642: 75:
As most definitions of color difference are distances within a
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The example above expects the parameter order of atan2 to be
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the human eye is more sensitive to certain colors than others
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color difference metric is derived from display referenced
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Since the 1994 definition did not adequately resolve the
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derived from an automotive paint test's tolerance data.
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as much to the difference (or, identically, is allowed
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is zero); in that case, set the hue angle to zero. See
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Sharma, Gaurav; Wu, Wencheng; Dalal, Edul N. (2005).
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Color Vision: Perspectives from Different Disciplines
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Fraser, Bruce; Bunting, Fred; Murphy, Chris (2004).
8205: 1868:, the CIE76 color difference formula is defined as: 1396:
is used between the lightness and the chroma plane,
8718:"Tips for Defining a Realistic Pass/Fail Tolerance" 8271: 8770: 8620: 8036: 8004: 7834: 7806: 7774: 7559: 7346: 7069: 6446: 6009:are zero (which also means that the corresponding 5980: 5802: 5512: 5227: 4932: 4831: 4483: 4432: 4396: 4360: 4279: 3519: 3298: 3224: 3082: 2819: 2552: 2300: 2231: 2158: 2099: 2054: 1861:{\textstyle ({L_{2}^{*}},{a_{2}^{*}},{b_{2}^{*}})} 1860: 1781:{\textstyle ({L_{1}^{*}},{a_{1}^{*}},{b_{1}^{*}})} 1780: 1569:about acceptability difference values in industry. 1536: 1332: 1066: 828: 611: 408: 255: 9511:Linguistic relativity and the color naming debate 2119:In 1984, the Colour Measurement Committee of the 9910: 8206:Backhaus, W.; Kliegl, R.; Werner, J. S. (1998). 1387: 8299:Evaluation of the CIE Color Difference Formulas 3299:{\displaystyle (L_{2}^{*},a_{2}^{*},b_{2}^{*})} 3225:{\displaystyle (L_{1}^{*},a_{1}^{*},b_{1}^{*})} 1342:where the components of this "ITP" is given by 2127:color model, an alternative representation of 1653:" (JND) to have meaning. Otherwise, a certain 1641:Perceptual non-uniformities in the underlying 1136: 8874: 8841:Bruce Lindbloom's color difference calculator 8656: 8686:"A guide to Understanding Color Tolerancing" 8683: 8462:"Colour Difference Software by David Heggie" 8332: 8330: 8308: 8306: 7997: 7985: 91:linear dimensions defining the color space. 8853:Explore the Spectrum with Colors in Between 8652: 8650: 9893: 8881: 8867: 8102: 6480:is irrelevant and may be set to zero. See 2123:defined a difference measure based on the 8843:. Uses all CIELAB metrics defined herein. 8745: 8638: 8327: 8303: 5967: 5966: 5885: 5884: 2100:{\textstyle \Delta E_{ab}^{*}\approx 2.3} 9662:International Commission on Illumination 8809: 8647: 8601:"The CIEDE2000 Color-Difference Formula" 7965:Called such because the operator is not 7858: 2301:{\textstyle (L_{1}^{*},C_{1}^{*},h_{1})} 2232:{\textstyle (L_{2}^{*},C_{2}^{*},h_{2})} 1594:International Commission on Illumination 27:Metric for difference between two colors 8421:(13). 1–15 October 1996. Archived from 8367:Meaning that the lightness contributes 8238: 1088: 431:, using a color range of 0–255): 14: 9911: 9652:Color Association of the United States 8847:The CIEDE2000 Color-Difference Formula 8525: 8336: 8232: 7127: 6481: 6017: 8862: 8677: 8563: 8492: 8438: 8384: 8199: 8062: 8060: 1622:often used to denote difference, and 1544:, is shown to work better on CIELAB. 3092:CMC l:c is designed to be used with 1551: 8278:(2nd ed.). Pearson Education. 24: 9516:Blue–green distinction in language 8738: 8598: 8212:. Walter de Gruyter. p. 188. 8057: 7942:Color coding in data visualization 7821: 7799: 7791: 7549: 7507: 7323: 7270: 7230: 7177: 7042: 7024: 6988: 6970: 6924: 6906: 6871: 6853: 6817: 6799: 6753: 6735: 6695: 6677: 6644: 6626: 6597: 6563: 6555: 6539: 6524: 6501: 6493: 6432: 6414: 6378: 6360: 6325: 6307: 6288: 6270: 6234: 6216: 6181: 6163: 6126: 6108: 6086: 6068: 6036: 5954: 5910: 5872: 5828: 5736: 5662: 5599: 5581: 5563: 5542: 5387: 5253: 4889: 4881: 4791: 4752: 4690: 4633: 4576: 4545: 4460: 4080: 4020: 3991: 3966: 3941: 3912: 3887: 3854: 3830: 3770: 3542: 3464: 3405: 3346: 3315: 2504: 2317: 2070: 1877: 1596:(CIE) calls their distance metric 1403: 1190: 1042: 983: 964: 916: 718: 675: 632: 577: 558: 539: 489: 470: 451: 25: 9945: 8834: 8123: 4851:The parametric weighting factors 4484:{\displaystyle \Delta H_{ab}^{*}} 2114: 9892: 9883: 9882: 9673:International Colour Association 9256: 8888: 8810:McDonald, Roderick, ed. (1997). 8752:Color Research & Application 8715: 8684:Susan Hughes (14 January 1998). 8659:Color Research & Application 8535:Color Research & Application 8173:Color Research & Application 8143:from the original on 2016-05-08. 8105:Color Research & Application 1556: 8816:Society of Dyers and Colourists 8709: 8614: 8603:. "Excel spreadsheet" hyperlink 8591: 8586:The "Blue Turns Purple" Problem 8579: 8557: 8519: 8486: 8475: 8454: 8432: 8400: 8378: 8361: 8314:"Delta E: The Color Difference" 8292: 8131:"What Is ICtCp – Introduction?" 7959: 7807:{\textstyle \Delta H^{\prime }} 7512: 7470: 6582: 5962: 5899: 5880: 5799: 5725: 5644: 5376: 5224: 5147: 5063: 5005: 2899: 2769: 2699: 2121:Society of Dyers and Colourists 107: 101: 95: 9668:International Color Consortium 9657:International Colour Authority 8640:10.2352/CIC.2004.12.1.art00058 8493:Klein, Georg A. (2010-05-18). 8340:Digital Color Imaging Handbook 8265: 8164: 8147: 8096: 8078: 7716: 7629: 7604: 7542: 7500: 7443: 7399: 7341: 7316: 7303: 7288: 7263: 7250: 7235: 7223: 7210: 7195: 7170: 7160: 6942: 6893: 6771: 6722: 6649: 6613: 6590: 6576: 6552: 5959: 5923: 5877: 5841: 5535: 5476: 5456: 5342: 5322: 5012: 4954: 3293: 3239: 3219: 3165: 3060: 3056: 3030: 3017: 2964: 2960: 2934: 2921: 2814: 2793: 2295: 2246: 2226: 2177: 2111:(just noticeable difference). 2038: 2001: 1989: 1952: 1940: 1903: 1855: 1795: 1775: 1715: 1487: 1460: 1448: 1421: 1316: 1289: 1277: 1250: 1238: 1211: 1098: 1025: 949: 906: 880: 857: 816: 790: 767: 515: 394: 367: 355: 328: 316: 289: 239: 212: 200: 173: 161: 134: 42:is the separation between two 13: 1: 9733:List of Crayola crayon colors 8051: 4517:Compensation for lightness (S 1692:JND to 2.3 being an example. 1547: 1388:Other geometric constructions 8627:Color and Imaging Conference 8375:the tolerance) as the chroma 7947: 7848: 4494: 4453:Geometrically, the quantity 65: 7: 9536:Traditional colors of Japan 9313:Achromatic colors (Neutral) 9196:Multi-primary color display 8970:Spectral power distribution 8812:Colour Physics for Industry 8746:Robertson, Alan R. (1990). 8275:Real World Color Management 8005:{\displaystyle S_{\{C,H\}}} 7930: 4328: 4324:depend on the application: 1147:In 2019 a new standard for 10: 9950: 8464:. Colorpro.com. 1995-12-19 7852: 4872:are usually set to unity. 4524:Compensation for chroma (S 3098:CIE Supplementary Observer 1651:just noticeable difference 1603:(also inaccurately called 1096: 9878: 9850: 9763: 9688: 9681: 9632: 9551: 9501: 9433: 9424: 9396:Color realism (art style) 9343: 9276: 9265: 9254: 9154: 9101: 9054:Evolution of color vision 8983: 8906: 8897: 8564:Lindbloom, Bruce Justin. 8439:Lindbloom, Bruce Justin. 8385:Lindbloom, Bruce Justin. 8037:{\displaystyle C_{1}^{*}} 7863:A MacAdam diagram in the 9713:List of colors (compact) 9531:Color in Chinese culture 9181:Digital image processing 8914:Electromagnetic spectrum 8497:Industrial Color Physics 7952: 3103: 2170:The distance of a color 1695: 423:of the color distances. 112:) is a distance of 128. 9718:List of colors by shade 8337:Sharma, Gaurav (2003). 7814:and the hue difference 4531:Compensation for hue (S 1137:Rec. ITU-R BT.2124 or Δ 70: 9723:List of color palettes 8764:10.1002/col.5080150308 8597:See implementation in 8245:. Wiley. p. 278. 8136:. Dolby. Version 7.1. 8038: 8006: 7868: 7836: 7835:{\textstyle \Delta h'} 7808: 7776: 7561: 7348: 7071: 6448: 5982: 5804: 5514: 5229: 4934: 4833: 4507:A hue rotation term (R 4485: 4434: 4398: 4362: 4281: 3521: 3300: 3226: 3154:As with the CMC I:c, Δ 3084: 2821: 2554: 2302: 2233: 2160: 2101: 2056: 1862: 1782: 1614:, or "Delta E") where 1567:is missing information 1538: 1334: 1115: 1068: 830: 613: 410: 257: 9647:Color Marketing Group 9402:On Vision and Colours 9335:Tinctures in heraldry 8946:Structural coloration 8039: 8007: 7862: 7837: 7809: 7777: 7562: 7349: 7072: 6476:is zero, then Δh 6449: 5983: 5805: 5515: 5230: 4935: 4834: 4501:perceptual uniformity 4486: 4435: 4433:{\displaystyle K_{2}} 4399: 4397:{\displaystyle K_{1}} 4363: 4361:{\displaystyle k_{L}} 4282: 3522: 3301: 3227: 3085: 2822: 2555: 2303: 2234: 2161: 2159:{\displaystyle h_{1}} 2102: 2057: 1863: 1783: 1632:Hermann von Helmholtz 1539: 1335: 1102: 1069: 831: 614: 411: 258: 18:Perceptual uniformity 9728:List of color spaces 9620:Tint, shade and tone 9503:Cultural differences 9318:Polychromatic colors 9303:Complementary colors 9291:Monochromatic colors 8855:, by Bettie M. Cobb. 8795:10.1364/AO.33.008069 8568:. Brucelindbloom.com 8566:"Delta E (CIE 2000)" 8501:. Springer. p.  8443:. Brucelindbloom.com 8441:"Delta E (CIE 1994)" 8389:. Brucelindbloom.com 8239:Valberg, A. (2005). 8016: 7977: 7889:CIE 1931 color space 7877:perceptually uniform 7865:CIE 1931 color space 7818: 7788: 7572: 7359: 7136: 6490: 6033: 5815: 5525: 5240: 4945: 4878: 4542: 4457: 4417: 4381: 4345: 3535: 3312: 3306:, the difference is 3236: 3162: 2832: 2565: 2314: 2243: 2174: 2143: 2067: 1874: 1792: 1712: 1704:Given two colors in 1400: 1187: 1089:Uniform color spaces 844: 625: 435: 271: 121: 100:) and (255, 64, 0) ( 9708:List of colors: N–Z 9703:List of colors: G–M 9698:List of colors: A–F 8787:1994ApOpt..33.8069M 8033: 7855:Uniform color space 7046: 7028: 6992: 6974: 6928: 6910: 6875: 6857: 6821: 6803: 6757: 6739: 6699: 6681: 6648: 6630: 6543: 6528: 6436: 6418: 6382: 6364: 6329: 6311: 6292: 6274: 6238: 6220: 6185: 6167: 6130: 6112: 6090: 6072: 5958: 5940: 5914: 5876: 5858: 5832: 5796: 5771: 5740: 5722: 5697: 5666: 5643: 5627: 5585: 5567: 5429: 5409: 5391: 5295: 5275: 5257: 5211: 5184: 5162: 5134: 5107: 5085: 5056: 5038: 4998: 4980: 4929: 4911: 4562: 4480: 4269: 4214: 4132: 4114: 4072: 4054: 3874: 3822: 3804: 3753: 3726: 3700: 3669: 3642: 3616: 3594: 3576: 3332: 3292: 3274: 3256: 3218: 3200: 3182: 2888: 2865: 2759: 2733: 2685: 2665: 2639: 2608: 2524: 2461: 2443: 2386: 2368: 2340: 2281: 2263: 2212: 2194: 2090: 2036: 2018: 1987: 1969: 1938: 1920: 1897: 1853: 1833: 1813: 1773: 1753: 1733: 1105:Uniform color space 9755:List of web colors 9750:List of RAL colors 9156:Color reproduction 9121:Lüscher color test 8958:Color of chemicals 8698:on 10 October 2015 8543:Wiley Interscience 8343:(1.7.2 ed.). 8242:Light Vision Color 8034: 8019: 8002: 7969:. This makes it a 7869: 7832: 7804: 7772: 7557: 7344: 7067: 7062: 7032: 7014: 6978: 6960: 6914: 6896: 6861: 6843: 6807: 6789: 6743: 6725: 6685: 6667: 6634: 6616: 6529: 6514: 6444: 6439: 6422: 6404: 6368: 6350: 6315: 6297: 6278: 6260: 6224: 6206: 6171: 6153: 6116: 6098: 6076: 6058: 5978: 5944: 5926: 5900: 5862: 5844: 5818: 5800: 5775: 5746: 5726: 5701: 5672: 5652: 5650: 5631: 5615: 5597: 5571: 5553: 5510: 5415: 5395: 5377: 5281: 5261: 5243: 5225: 5197: 5170: 5148: 5120: 5093: 5071: 5069: 5042: 5024: 4984: 4966: 4930: 4915: 4897: 4829: 4548: 4481: 4463: 4430: 4394: 4358: 4277: 4275: 4255: 4200: 4118: 4100: 4058: 4040: 3857: 3808: 3790: 3739: 3712: 3686: 3655: 3628: 3602: 3580: 3562: 3517: 3318: 3296: 3278: 3260: 3242: 3232:and another color 3222: 3204: 3186: 3168: 3080: 3075: 3071: 2867: 2844: 2817: 2745: 2719: 2694: 2671: 2651: 2625: 2594: 2550: 2507: 2447: 2429: 2372: 2354: 2320: 2298: 2267: 2249: 2229: 2198: 2180: 2156: 2129:L*a*b* coordinates 2097: 2073: 2052: 2022: 2004: 1973: 1955: 1924: 1906: 1880: 1858: 1839: 1819: 1799: 1778: 1759: 1739: 1719: 1706:CIELAB color space 1534: 1330: 1121:, CAM16-UCS, and J 1064: 1062: 826: 824: 609: 604: 406: 253: 57:device-independent 53:Euclidean distance 9924:Visual perception 9906: 9905: 9846: 9845: 9628: 9627: 9420: 9419: 9410:Theory of Colours 9252: 9251: 9164:Color photography 9116:Color preferences 9059:Impossible colors 9049:Color vision test 9044:Color temperature 9022:Color calibration 8951:Animal coloration 8671:10.1002/col.20070 8588:, Bruce Lindbloom 8551:10.1002/col.20070 8512:978-1-4419-1196-4 8185:10.1002/col.22451 8117:10.1002/col.22131 7750: 7719: 7661: 7660: 7632: 7607: 7545: 7503: 7468: 7467: 7446: 7402: 7319: 7266: 7226: 7173: 6593: 6544: 5921: 5839: 5797: 5723: 5649: 5596: 5590: 5538: 5503: 5502: 5479: 5459: 5433: 5369: 5368: 5345: 5325: 5299: 5219: 5142: 5068: 5061: 5015: 5003: 4957: 4827: 4825: 4786: 4724: 4667: 4610: 4449: 4448: 4011: 3932: 3761: 3677: 3512: 3500: 3441: 3382: 3070: 2897: 2896: 2761: 2667: 2548: 2536: 2481: 2406: 2107:corresponds to a 2047: 1590: 1589: 1496: 1413: 1325: 1200: 1055: 1035: 1028: 957: 952: 878: 860: 788: 770: 597: 590: 518: 502: 278: 248: 127: 16:(Redirected from 9941: 9896: 9895: 9886: 9885: 9686: 9685: 9552:Color dimensions 9541:Human skin color 9431: 9430: 9308:Analogous colors 9274: 9273: 9260: 9186:Color management 9103:Color psychology 9069:Opponent process 8985:Color perception 8904: 8903: 8883: 8876: 8869: 8860: 8859: 8829: 8814:(2nd ed.). 8806: 8767: 8733: 8732: 8730: 8728: 8713: 8707: 8706: 8704: 8703: 8697: 8691:. Archived from 8690: 8681: 8675: 8674: 8654: 8645: 8644: 8642: 8618: 8612: 8611: 8609: 8608: 8599:Sharma, Gaurav. 8595: 8589: 8583: 8577: 8576: 8574: 8573: 8561: 8555: 8554: 8532: 8523: 8517: 8516: 8500: 8490: 8484: 8483: 8479: 8473: 8472: 8470: 8469: 8458: 8452: 8451: 8449: 8448: 8436: 8430: 8429: 8427: 8415:Insight on Color 8412: 8404: 8398: 8397: 8395: 8394: 8382: 8376: 8365: 8359: 8358: 8334: 8325: 8324: 8322: 8321: 8310: 8301: 8296: 8290: 8289: 8269: 8263: 8262: 8260: 8259: 8236: 8230: 8229: 8227: 8226: 8203: 8197: 8196: 8168: 8162: 8161: 8159: 8151: 8145: 8144: 8142: 8135: 8127: 8121: 8120: 8100: 8094: 8093: 8086:"Color Glossary" 8082: 8076: 8075: 8064: 8045: 8043: 8041: 8040: 8035: 8032: 8027: 8011: 8009: 8008: 8003: 8001: 8000: 7973:. Specifically, 7963: 7926: 7841: 7839: 7838: 7833: 7831: 7813: 7811: 7810: 7805: 7803: 7802: 7781: 7779: 7778: 7773: 7771: 7767: 7766: 7762: 7761: 7760: 7755: 7751: 7749: 7748: 7739: 7738: 7737: 7725: 7721: 7720: 7712: 7707: 7683: 7682: 7662: 7659: 7658: 7657: 7645: 7644: 7643: 7634: 7633: 7625: 7620: 7619: 7618: 7609: 7608: 7600: 7596: 7595: 7584: 7583: 7566: 7564: 7563: 7558: 7553: 7552: 7547: 7546: 7538: 7522: 7521: 7511: 7510: 7505: 7504: 7496: 7480: 7479: 7469: 7466: 7465: 7460: 7459: 7455: 7448: 7447: 7439: 7423: 7422: 7421: 7420: 7415: 7411: 7404: 7403: 7395: 7382: 7371: 7370: 7353: 7351: 7350: 7345: 7340: 7339: 7327: 7326: 7321: 7320: 7312: 7287: 7286: 7274: 7273: 7268: 7267: 7259: 7234: 7233: 7228: 7227: 7219: 7194: 7193: 7181: 7180: 7175: 7174: 7166: 7121: 7111: 7105: 7102: 7094: 7084: 7076: 7074: 7073: 7068: 7066: 7065: 7059: 7058: 7045: 7040: 7027: 7022: 7010: 7009: 6997: 6993: 6991: 6986: 6973: 6968: 6949: 6941: 6940: 6927: 6922: 6909: 6904: 6888: 6887: 6874: 6869: 6856: 6851: 6839: 6838: 6826: 6822: 6820: 6815: 6802: 6797: 6778: 6770: 6769: 6756: 6751: 6738: 6733: 6717: 6716: 6704: 6700: 6698: 6693: 6680: 6675: 6656: 6647: 6642: 6629: 6624: 6601: 6600: 6595: 6594: 6586: 6572: 6567: 6566: 6545: 6542: 6537: 6527: 6522: 6513: 6505: 6504: 6479: 6471: 6461: 6453: 6451: 6450: 6445: 6443: 6442: 6435: 6430: 6417: 6412: 6400: 6399: 6387: 6383: 6381: 6376: 6363: 6358: 6342: 6341: 6328: 6323: 6310: 6305: 6291: 6286: 6273: 6268: 6256: 6255: 6243: 6239: 6237: 6232: 6219: 6214: 6198: 6197: 6184: 6179: 6166: 6161: 6148: 6147: 6135: 6131: 6129: 6124: 6111: 6106: 6089: 6084: 6071: 6066: 6046: 6026: 6014: 6003: 5997: 5995: 5987: 5985: 5984: 5979: 5977: 5976: 5957: 5952: 5939: 5934: 5922: 5919: 5913: 5908: 5895: 5894: 5875: 5870: 5857: 5852: 5840: 5837: 5831: 5826: 5809: 5807: 5806: 5801: 5798: 5795: 5794: 5793: 5783: 5770: 5769: 5768: 5767: 5754: 5745: 5739: 5734: 5724: 5721: 5720: 5719: 5709: 5696: 5695: 5694: 5693: 5680: 5671: 5665: 5660: 5651: 5647: 5639: 5623: 5611: 5610: 5598: 5594: 5591: 5586: 5584: 5579: 5566: 5561: 5551: 5546: 5545: 5540: 5539: 5531: 5519: 5517: 5516: 5511: 5509: 5505: 5504: 5501: 5500: 5499: 5487: 5486: 5481: 5480: 5472: 5467: 5466: 5461: 5460: 5452: 5448: 5447: 5434: 5428: 5423: 5414: 5408: 5403: 5390: 5385: 5375: 5371: 5370: 5367: 5366: 5365: 5353: 5352: 5347: 5346: 5338: 5333: 5332: 5327: 5326: 5318: 5314: 5313: 5300: 5294: 5289: 5280: 5274: 5269: 5256: 5251: 5234: 5232: 5231: 5226: 5220: 5218: 5217: 5212: 5210: 5205: 5191: 5190: 5185: 5183: 5178: 5167: 5161: 5156: 5143: 5141: 5140: 5135: 5133: 5128: 5114: 5113: 5108: 5106: 5101: 5090: 5084: 5079: 5070: 5066: 5062: 5057: 5055: 5050: 5037: 5032: 5022: 5017: 5016: 5008: 5004: 4999: 4997: 4992: 4979: 4974: 4964: 4959: 4958: 4950: 4939: 4937: 4936: 4931: 4928: 4923: 4910: 4905: 4893: 4892: 4838: 4836: 4835: 4830: 4828: 4826: 4824: 4823: 4822: 4813: 4812: 4802: 4801: 4789: 4787: 4785: 4784: 4783: 4774: 4773: 4763: 4762: 4750: 4748: 4747: 4735: 4734: 4729: 4725: 4723: 4722: 4721: 4712: 4711: 4701: 4700: 4688: 4678: 4677: 4672: 4668: 4666: 4665: 4664: 4655: 4654: 4644: 4643: 4631: 4621: 4620: 4615: 4611: 4609: 4608: 4607: 4598: 4597: 4587: 4586: 4574: 4567: 4561: 4556: 4490: 4488: 4487: 4482: 4479: 4474: 4439: 4437: 4436: 4431: 4429: 4428: 4403: 4401: 4400: 4395: 4393: 4392: 4367: 4365: 4364: 4359: 4357: 4356: 4329: 4286: 4284: 4283: 4278: 4276: 4268: 4263: 4254: 4253: 4231: 4230: 4213: 4208: 4199: 4198: 4176: 4175: 4149: 4148: 4131: 4126: 4113: 4108: 4092: 4091: 4071: 4066: 4053: 4048: 4032: 4031: 4012: 4010: 4009: 4004: 4003: 4002: 3985: 3984: 3979: 3978: 3977: 3960: 3959: 3954: 3953: 3952: 3938: 3933: 3931: 3930: 3925: 3924: 3923: 3906: 3905: 3900: 3899: 3898: 3881: 3880: 3875: 3873: 3868: 3851: 3842: 3841: 3821: 3816: 3803: 3798: 3782: 3781: 3762: 3760: 3759: 3754: 3752: 3747: 3733: 3732: 3727: 3725: 3720: 3709: 3699: 3694: 3678: 3676: 3675: 3670: 3668: 3663: 3649: 3648: 3643: 3641: 3636: 3625: 3615: 3610: 3593: 3588: 3575: 3570: 3554: 3553: 3526: 3524: 3523: 3518: 3513: 3511: 3510: 3505: 3501: 3499: 3498: 3497: 3488: 3487: 3477: 3476: 3475: 3462: 3452: 3451: 3446: 3442: 3440: 3439: 3438: 3429: 3428: 3418: 3417: 3416: 3403: 3393: 3392: 3387: 3383: 3381: 3380: 3379: 3370: 3369: 3359: 3358: 3357: 3344: 3337: 3331: 3326: 3305: 3303: 3302: 3297: 3291: 3286: 3273: 3268: 3255: 3250: 3231: 3229: 3228: 3223: 3217: 3212: 3199: 3194: 3181: 3176: 3130:, and functions 3089: 3087: 3086: 3081: 3079: 3078: 3072: 3068: 3063: 3055: 3054: 3042: 3041: 3020: 3005: 3004: 2992: 2991: 2979: 2978: 2967: 2959: 2958: 2946: 2945: 2924: 2898: 2895: 2887: 2886: 2885: 2875: 2864: 2863: 2862: 2852: 2843: 2842: 2826: 2824: 2823: 2818: 2792: 2791: 2779: 2778: 2762: 2760: 2758: 2753: 2734: 2732: 2727: 2714: 2709: 2708: 2698: 2697: 2684: 2679: 2668: 2666: 2664: 2659: 2640: 2638: 2633: 2620: 2607: 2602: 2577: 2576: 2559: 2557: 2556: 2551: 2549: 2547: 2546: 2541: 2537: 2535: 2534: 2525: 2523: 2518: 2502: 2492: 2491: 2486: 2482: 2480: 2479: 2478: 2462: 2460: 2455: 2442: 2437: 2427: 2417: 2416: 2411: 2407: 2405: 2404: 2403: 2387: 2385: 2380: 2367: 2362: 2352: 2345: 2339: 2334: 2307: 2305: 2304: 2299: 2294: 2293: 2280: 2275: 2262: 2257: 2238: 2236: 2235: 2230: 2225: 2224: 2211: 2206: 2193: 2188: 2165: 2163: 2162: 2157: 2155: 2154: 2106: 2104: 2103: 2098: 2089: 2084: 2061: 2059: 2058: 2053: 2048: 2046: 2045: 2035: 2030: 2017: 2012: 1997: 1996: 1986: 1981: 1968: 1963: 1948: 1947: 1937: 1932: 1919: 1914: 1902: 1896: 1891: 1867: 1865: 1864: 1859: 1854: 1852: 1847: 1834: 1832: 1827: 1814: 1812: 1807: 1787: 1785: 1784: 1779: 1774: 1772: 1767: 1754: 1752: 1747: 1734: 1732: 1727: 1691: 1679: 1669: 1659: 1613: 1609: 1602: 1585: 1582: 1576: 1560: 1552: 1543: 1541: 1540: 1535: 1533: 1529: 1528: 1527: 1515: 1514: 1497: 1495: 1494: 1485: 1484: 1472: 1471: 1456: 1455: 1446: 1445: 1433: 1432: 1420: 1415: 1414: 1411: 1394:taxicab distance 1339: 1337: 1336: 1331: 1326: 1324: 1323: 1314: 1313: 1301: 1300: 1285: 1284: 1275: 1274: 1262: 1261: 1246: 1245: 1236: 1235: 1223: 1222: 1210: 1202: 1201: 1198: 1113: 1099:§ Tolerance 1073: 1071: 1070: 1065: 1063: 1056: 1054: 1053: 1041: 1037: 1036: 1031: 1030: 1029: 1021: 1011: 995: 994: 976: 975: 963: 959: 958: 953: 945: 943: 930: 905: 904: 892: 891: 879: 871: 862: 861: 853: 835: 833: 832: 827: 825: 815: 814: 802: 801: 789: 781: 772: 771: 763: 753: 752: 740: 739: 710: 709: 697: 696: 667: 666: 654: 653: 618: 616: 615: 610: 608: 607: 598: 595: 591: 589: 588: 570: 569: 551: 550: 535: 520: 519: 511: 503: 501: 500: 482: 481: 463: 462: 447: 415: 413: 412: 407: 402: 401: 392: 391: 379: 378: 363: 362: 353: 352: 340: 339: 324: 323: 314: 313: 301: 300: 285: 284: 279: 276: 262: 260: 259: 254: 249: 247: 246: 237: 236: 224: 223: 208: 207: 198: 197: 185: 184: 169: 168: 159: 158: 146: 145: 133: 128: 125: 111: 110: 105: 104: 99: 98: 36:color difference 21: 9949: 9948: 9944: 9943: 9942: 9940: 9939: 9938: 9909: 9908: 9907: 9902: 9874: 9842: 9759: 9677: 9634: 9624: 9547: 9526:Blue in culture 9497: 9416: 9363:Secondary color 9339: 9296:black-and-white 9268: 9261: 9248: 9150: 9136:National colors 9131:Political color 9111:Color symbolism 9097: 9027:Color constancy 9005:Color blindness 8979: 8936:Spectral colors 8893: 8887: 8837: 8832: 8826: 8781:(34): 8069–77. 8741: 8739:Further reading 8736: 8726: 8724: 8714: 8710: 8701: 8699: 8695: 8688: 8682: 8678: 8655: 8648: 8619: 8615: 8606: 8604: 8596: 8592: 8584: 8580: 8571: 8569: 8562: 8558: 8530: 8524: 8520: 8513: 8491: 8487: 8481: 8480: 8476: 8467: 8465: 8460: 8459: 8455: 8446: 8444: 8437: 8433: 8425: 8410: 8406: 8405: 8401: 8392: 8390: 8387:"Delta E (CMC)" 8383: 8379: 8366: 8362: 8355: 8335: 8328: 8319: 8317: 8316:. Colorwiki.com 8312: 8311: 8304: 8297: 8293: 8286: 8270: 8266: 8257: 8255: 8253: 8237: 8233: 8224: 8222: 8220: 8204: 8200: 8169: 8165: 8157: 8153: 8152: 8148: 8140: 8133: 8129: 8128: 8124: 8101: 8097: 8084: 8083: 8079: 8068:"Colour metric" 8066: 8065: 8058: 8054: 8049: 8048: 8028: 8023: 8017: 8014: 8013: 8012:both depend on 7984: 7980: 7978: 7975: 7974: 7964: 7960: 7955: 7950: 7933: 7925: 7918: 7893:MacAdam ellipse 7857: 7851: 7824: 7819: 7816: 7815: 7798: 7794: 7789: 7786: 7785: 7756: 7744: 7740: 7733: 7729: 7711: 7710: 7709: 7708: 7706: 7702: 7701: 7697: 7693: 7678: 7674: 7673: 7669: 7653: 7649: 7639: 7635: 7624: 7623: 7622: 7621: 7614: 7610: 7599: 7598: 7597: 7594: 7579: 7575: 7573: 7570: 7569: 7548: 7537: 7536: 7535: 7517: 7513: 7506: 7495: 7494: 7493: 7475: 7471: 7461: 7438: 7437: 7436: 7432: 7431: 7430: 7416: 7394: 7393: 7392: 7388: 7387: 7383: 7381: 7366: 7362: 7360: 7357: 7356: 7335: 7331: 7322: 7311: 7310: 7309: 7282: 7278: 7269: 7258: 7257: 7256: 7229: 7218: 7217: 7216: 7189: 7185: 7176: 7165: 7164: 7163: 7137: 7134: 7133: 7125: 7119: 7115: 7109: 7103: 7100: 7098: 7092: 7088: 7082: 7061: 7060: 7054: 7050: 7041: 7036: 7023: 7018: 7005: 7001: 6987: 6982: 6969: 6964: 6959: 6955: 6953: 6945: 6936: 6932: 6923: 6918: 6905: 6900: 6890: 6889: 6883: 6879: 6870: 6865: 6852: 6847: 6834: 6830: 6816: 6811: 6798: 6793: 6788: 6784: 6782: 6774: 6765: 6761: 6752: 6747: 6734: 6729: 6719: 6718: 6712: 6708: 6694: 6689: 6676: 6671: 6666: 6662: 6660: 6652: 6643: 6638: 6625: 6620: 6606: 6605: 6596: 6585: 6584: 6583: 6568: 6562: 6558: 6538: 6533: 6523: 6518: 6512: 6500: 6496: 6491: 6488: 6487: 6477: 6475: 6469: 6465: 6459: 6438: 6437: 6431: 6426: 6413: 6408: 6395: 6391: 6377: 6372: 6359: 6354: 6349: 6345: 6343: 6337: 6333: 6324: 6319: 6306: 6301: 6294: 6293: 6287: 6282: 6269: 6264: 6251: 6247: 6233: 6228: 6215: 6210: 6205: 6201: 6199: 6193: 6189: 6180: 6175: 6162: 6157: 6150: 6149: 6143: 6139: 6125: 6120: 6107: 6102: 6097: 6093: 6091: 6085: 6080: 6067: 6062: 6051: 6050: 6039: 6034: 6031: 6030: 6024: 6012: 6001: 5993: 5991: 5972: 5968: 5953: 5948: 5935: 5930: 5918: 5909: 5904: 5890: 5886: 5871: 5866: 5853: 5848: 5836: 5827: 5822: 5816: 5813: 5812: 5789: 5785: 5784: 5779: 5763: 5759: 5756: 5755: 5750: 5744: 5735: 5730: 5715: 5711: 5710: 5705: 5689: 5685: 5682: 5681: 5676: 5670: 5661: 5656: 5645: 5635: 5619: 5603: 5602: 5595: and  5592: 5580: 5575: 5562: 5557: 5552: 5550: 5541: 5530: 5529: 5528: 5526: 5523: 5522: 5495: 5491: 5482: 5471: 5470: 5469: 5468: 5462: 5451: 5450: 5449: 5446: 5439: 5435: 5424: 5419: 5413: 5404: 5399: 5386: 5381: 5361: 5357: 5348: 5337: 5336: 5335: 5334: 5328: 5317: 5316: 5315: 5312: 5305: 5301: 5290: 5285: 5279: 5270: 5265: 5252: 5247: 5241: 5238: 5237: 5213: 5206: 5201: 5196: 5195: 5186: 5179: 5174: 5169: 5168: 5166: 5157: 5152: 5136: 5129: 5124: 5119: 5118: 5109: 5102: 5097: 5092: 5091: 5089: 5080: 5075: 5064: 5051: 5046: 5033: 5028: 5023: 5021: 5007: 5006: 4993: 4988: 4975: 4970: 4965: 4963: 4949: 4948: 4946: 4943: 4942: 4924: 4919: 4906: 4901: 4888: 4884: 4879: 4876: 4875: 4870: 4863: 4856: 4846: 4818: 4814: 4808: 4804: 4803: 4794: 4790: 4788: 4779: 4775: 4769: 4765: 4764: 4755: 4751: 4749: 4743: 4739: 4730: 4717: 4713: 4707: 4703: 4702: 4693: 4689: 4687: 4683: 4682: 4673: 4660: 4656: 4650: 4646: 4645: 4636: 4632: 4630: 4626: 4625: 4616: 4603: 4599: 4593: 4589: 4588: 4579: 4575: 4573: 4569: 4568: 4566: 4557: 4552: 4543: 4540: 4539: 4534: 4527: 4520: 4510: 4497: 4475: 4467: 4458: 4455: 4454: 4424: 4420: 4418: 4415: 4414: 4388: 4384: 4382: 4379: 4378: 4352: 4348: 4346: 4343: 4342: 4323: 4316: 4308: 4301: 4294: 4274: 4273: 4264: 4259: 4249: 4245: 4232: 4226: 4222: 4219: 4218: 4209: 4204: 4194: 4190: 4177: 4171: 4167: 4164: 4163: 4150: 4144: 4140: 4137: 4136: 4127: 4122: 4109: 4104: 4093: 4087: 4083: 4077: 4076: 4067: 4062: 4049: 4044: 4033: 4027: 4023: 4017: 4016: 4005: 3998: 3994: 3990: 3989: 3980: 3973: 3969: 3965: 3964: 3955: 3948: 3944: 3940: 3939: 3937: 3926: 3919: 3915: 3911: 3910: 3901: 3894: 3890: 3886: 3885: 3876: 3869: 3861: 3853: 3852: 3850: 3843: 3837: 3833: 3827: 3826: 3817: 3812: 3799: 3794: 3783: 3777: 3773: 3767: 3766: 3755: 3748: 3743: 3738: 3737: 3728: 3721: 3716: 3711: 3710: 3708: 3701: 3695: 3690: 3683: 3682: 3671: 3664: 3659: 3654: 3653: 3644: 3637: 3632: 3627: 3626: 3624: 3617: 3611: 3606: 3599: 3598: 3589: 3584: 3571: 3566: 3555: 3549: 3545: 3538: 3536: 3533: 3532: 3506: 3493: 3489: 3483: 3479: 3478: 3471: 3467: 3463: 3461: 3457: 3456: 3447: 3434: 3430: 3424: 3420: 3419: 3412: 3408: 3404: 3402: 3398: 3397: 3388: 3375: 3371: 3365: 3361: 3360: 3353: 3349: 3345: 3343: 3339: 3338: 3336: 3327: 3322: 3313: 3310: 3309: 3287: 3282: 3269: 3264: 3251: 3246: 3237: 3234: 3233: 3213: 3208: 3195: 3190: 3177: 3172: 3163: 3160: 3159: 3149: 3142: 3135: 3128: 3121: 3114: 3106: 3074: 3073: 3066: 3064: 3059: 3050: 3046: 3037: 3033: 3016: 3007: 3006: 3000: 2996: 2987: 2983: 2974: 2970: 2968: 2963: 2954: 2950: 2941: 2937: 2920: 2907: 2906: 2881: 2877: 2876: 2871: 2866: 2858: 2854: 2853: 2848: 2841: 2833: 2830: 2829: 2787: 2783: 2774: 2770: 2754: 2749: 2735: 2728: 2723: 2715: 2713: 2704: 2700: 2693: 2692: 2680: 2675: 2669: 2660: 2655: 2641: 2634: 2629: 2621: 2619: 2616: 2615: 2603: 2598: 2592: 2582: 2581: 2572: 2568: 2566: 2563: 2562: 2542: 2530: 2526: 2519: 2511: 2503: 2501: 2497: 2496: 2487: 2474: 2470: 2463: 2456: 2451: 2438: 2433: 2428: 2426: 2422: 2421: 2412: 2399: 2395: 2388: 2381: 2376: 2363: 2358: 2353: 2351: 2347: 2346: 2344: 2335: 2324: 2315: 2312: 2311: 2289: 2285: 2276: 2271: 2258: 2253: 2244: 2241: 2240: 2239:to a reference 2220: 2216: 2207: 2202: 2189: 2184: 2175: 2172: 2171: 2150: 2146: 2144: 2141: 2140: 2117: 2085: 2077: 2068: 2065: 2064: 2041: 2037: 2031: 2026: 2013: 2008: 1992: 1988: 1982: 1977: 1964: 1959: 1943: 1939: 1933: 1928: 1915: 1910: 1901: 1892: 1884: 1875: 1872: 1871: 1848: 1843: 1838: 1828: 1823: 1818: 1808: 1803: 1798: 1793: 1790: 1789: 1768: 1763: 1758: 1748: 1743: 1738: 1728: 1723: 1718: 1713: 1710: 1709: 1698: 1690: 1681: 1678: 1671: 1664: 1654: 1611: 1604: 1597: 1586: 1580: 1577: 1570: 1561: 1550: 1523: 1519: 1510: 1506: 1505: 1501: 1490: 1486: 1480: 1476: 1467: 1463: 1451: 1447: 1441: 1437: 1428: 1424: 1419: 1410: 1406: 1401: 1398: 1397: 1390: 1382: 1367: 1319: 1315: 1309: 1305: 1296: 1292: 1280: 1276: 1270: 1266: 1257: 1253: 1241: 1237: 1231: 1227: 1218: 1214: 1209: 1197: 1193: 1188: 1185: 1184: 1179: 1175: 1169: 1162: 1145: 1143: 1132: 1128: 1124: 1114: 1112:X-rite glossary 1111: 1101: 1091: 1061: 1060: 1049: 1045: 1020: 1019: 1012: 1010: 1003: 999: 990: 986: 971: 967: 944: 942: 935: 931: 929: 922: 913: 912: 900: 896: 887: 883: 870: 863: 852: 851: 847: 845: 842: 841: 823: 822: 810: 806: 797: 793: 780: 773: 762: 761: 758: 757: 748: 744: 735: 731: 724: 715: 714: 705: 701: 692: 688: 681: 672: 671: 662: 658: 649: 645: 638: 628: 626: 623: 622: 603: 602: 594: 592: 584: 580: 565: 561: 546: 542: 534: 531: 530: 510: 509: 507: 496: 492: 477: 473: 458: 454: 446: 439: 438: 436: 433: 432: 397: 393: 387: 383: 374: 370: 358: 354: 348: 344: 335: 331: 319: 315: 309: 305: 296: 292: 280: 275: 274: 272: 269: 268: 242: 238: 232: 228: 219: 215: 203: 199: 193: 189: 180: 176: 164: 160: 154: 150: 141: 137: 132: 124: 122: 119: 118: 108: 102: 96: 73: 68: 28: 23: 22: 15: 12: 11: 5: 9947: 9937: 9936: 9931: 9926: 9921: 9904: 9903: 9901: 9900: 9890: 9879: 9876: 9875: 9873: 9872: 9867: 9862: 9856: 9854: 9848: 9847: 9844: 9843: 9841: 9840: 9835: 9830: 9825: 9820: 9815: 9810: 9805: 9800: 9795: 9790: 9785: 9780: 9775: 9769: 9767: 9761: 9760: 9758: 9757: 9752: 9747: 9742: 9741: 9740: 9730: 9725: 9720: 9715: 9710: 9705: 9700: 9694: 9692: 9683: 9679: 9678: 9676: 9675: 9670: 9665: 9659: 9654: 9649: 9644: 9638: 9636: 9630: 9629: 9626: 9625: 9623: 9622: 9617: 9612: 9611: 9610: 9605: 9600: 9595: 9590: 9580: 9579: 9578: 9568: 9567: 9566: 9555: 9553: 9549: 9548: 9546: 9545: 9544: 9543: 9538: 9533: 9528: 9522:Color history 9520: 9519: 9518: 9507: 9505: 9499: 9498: 9496: 9495: 9490: 9485: 9480: 9475: 9470: 9465: 9460: 9455: 9450: 9445: 9439: 9437: 9428: 9422: 9421: 9418: 9417: 9415: 9414: 9406: 9405:(Schopenhauer) 9398: 9393: 9390:Color analysis 9387: 9385:Color triangle 9382: 9377: 9372: 9367: 9366: 9365: 9360: 9349: 9347: 9341: 9340: 9338: 9337: 9332: 9327: 9322: 9321: 9320: 9315: 9310: 9305: 9300: 9299: 9298: 9282: 9280: 9271: 9263: 9262: 9255: 9253: 9250: 9249: 9247: 9246: 9241: 9236: 9235: 9234: 9233: 9232: 9222: 9221: 9220: 9205: 9204: 9203: 9198: 9191:Color printing 9188: 9183: 9178: 9177: 9176: 9171: 9160: 9158: 9152: 9151: 9149: 9148: 9143: 9138: 9133: 9128: 9126:Kruithof curve 9123: 9118: 9113: 9107: 9105: 9099: 9098: 9096: 9095: 9088: 9083: 9082: 9081: 9076: 9066: 9061: 9056: 9051: 9046: 9041: 9040: 9039: 9029: 9024: 9019: 9018: 9017: 9012: 9002: 9001: 9000: 8998:Sonochromatism 8989: 8987: 8981: 8980: 8978: 8977: 8972: 8967: 8966: 8965: 8955: 8954: 8953: 8948: 8938: 8933: 8932: 8931: 8926: 8921: 8910: 8908: 8901: 8895: 8894: 8886: 8885: 8878: 8871: 8863: 8857: 8856: 8850: 8844: 8836: 8835:External links 8833: 8831: 8830: 8824: 8807: 8774:Applied Optics 8768: 8758:(3): 167–170. 8742: 8740: 8737: 8735: 8734: 8708: 8676: 8646: 8633:(1): 334–339. 8613: 8590: 8578: 8556: 8518: 8511: 8485: 8474: 8453: 8431: 8428:on 2006-03-12. 8399: 8377: 8360: 8353: 8326: 8302: 8291: 8284: 8264: 8251: 8231: 8218: 8198: 8179:(2): 208–223. 8163: 8146: 8122: 8111:(6): 703–718. 8095: 8077: 8055: 8053: 8050: 8047: 8046: 8031: 8026: 8022: 7999: 7996: 7993: 7990: 7987: 7983: 7957: 7956: 7954: 7951: 7949: 7946: 7945: 7944: 7939: 7932: 7929: 7923: 7850: 7847: 7830: 7827: 7823: 7801: 7797: 7793: 7770: 7765: 7759: 7754: 7747: 7743: 7736: 7732: 7728: 7724: 7718: 7715: 7705: 7700: 7696: 7692: 7689: 7686: 7681: 7677: 7672: 7668: 7665: 7656: 7652: 7648: 7642: 7638: 7631: 7628: 7617: 7613: 7606: 7603: 7593: 7590: 7587: 7582: 7578: 7556: 7551: 7544: 7541: 7534: 7531: 7528: 7525: 7520: 7516: 7509: 7502: 7499: 7492: 7489: 7486: 7483: 7478: 7474: 7464: 7458: 7454: 7451: 7445: 7442: 7435: 7429: 7426: 7419: 7414: 7410: 7407: 7401: 7398: 7391: 7386: 7380: 7377: 7374: 7369: 7365: 7343: 7338: 7334: 7330: 7325: 7318: 7315: 7308: 7305: 7302: 7299: 7296: 7293: 7290: 7285: 7281: 7277: 7272: 7265: 7262: 7255: 7252: 7249: 7246: 7243: 7240: 7237: 7232: 7225: 7222: 7215: 7212: 7209: 7206: 7203: 7200: 7197: 7192: 7188: 7184: 7179: 7172: 7169: 7162: 7159: 7156: 7153: 7150: 7147: 7144: 7141: 7123: 7113: 7099:is zero, then 7096: 7086: 7064: 7057: 7053: 7049: 7044: 7039: 7035: 7031: 7026: 7021: 7017: 7013: 7008: 7004: 7000: 6996: 6990: 6985: 6981: 6977: 6972: 6967: 6963: 6958: 6954: 6952: 6948: 6944: 6939: 6935: 6931: 6926: 6921: 6917: 6913: 6908: 6903: 6899: 6895: 6892: 6891: 6886: 6882: 6878: 6873: 6868: 6864: 6860: 6855: 6850: 6846: 6842: 6837: 6833: 6829: 6825: 6819: 6814: 6810: 6806: 6801: 6796: 6792: 6787: 6783: 6781: 6777: 6773: 6768: 6764: 6760: 6755: 6750: 6746: 6742: 6737: 6732: 6728: 6724: 6721: 6720: 6715: 6711: 6707: 6703: 6697: 6692: 6688: 6684: 6679: 6674: 6670: 6665: 6661: 6659: 6655: 6651: 6646: 6641: 6637: 6633: 6628: 6623: 6619: 6615: 6612: 6611: 6609: 6604: 6599: 6592: 6589: 6581: 6578: 6575: 6571: 6565: 6561: 6557: 6554: 6551: 6548: 6541: 6536: 6532: 6526: 6521: 6517: 6511: 6508: 6503: 6499: 6495: 6473: 6463: 6441: 6434: 6429: 6425: 6421: 6416: 6411: 6407: 6403: 6398: 6394: 6390: 6386: 6380: 6375: 6371: 6367: 6362: 6357: 6353: 6348: 6344: 6340: 6336: 6332: 6327: 6322: 6318: 6314: 6309: 6304: 6300: 6296: 6295: 6290: 6285: 6281: 6277: 6272: 6267: 6263: 6259: 6254: 6250: 6246: 6242: 6236: 6231: 6227: 6223: 6218: 6213: 6209: 6204: 6200: 6196: 6192: 6188: 6183: 6178: 6174: 6170: 6165: 6160: 6156: 6152: 6151: 6146: 6142: 6138: 6134: 6128: 6123: 6119: 6115: 6110: 6105: 6101: 6096: 6092: 6088: 6083: 6079: 6075: 6070: 6065: 6061: 6057: 6056: 6054: 6049: 6045: 6042: 6038: 5975: 5971: 5965: 5961: 5956: 5951: 5947: 5943: 5938: 5933: 5929: 5925: 5917: 5912: 5907: 5903: 5898: 5893: 5889: 5883: 5879: 5874: 5869: 5865: 5861: 5856: 5851: 5847: 5843: 5835: 5830: 5825: 5821: 5792: 5788: 5782: 5778: 5774: 5766: 5762: 5758: 5753: 5749: 5743: 5738: 5733: 5729: 5718: 5714: 5708: 5704: 5700: 5692: 5688: 5684: 5679: 5675: 5669: 5664: 5659: 5655: 5642: 5638: 5634: 5630: 5626: 5622: 5618: 5614: 5609: 5606: 5601: 5589: 5583: 5578: 5574: 5570: 5565: 5560: 5556: 5549: 5544: 5537: 5534: 5508: 5498: 5494: 5490: 5485: 5478: 5475: 5465: 5458: 5455: 5445: 5442: 5438: 5432: 5427: 5422: 5418: 5412: 5407: 5402: 5398: 5394: 5389: 5384: 5380: 5374: 5364: 5360: 5356: 5351: 5344: 5341: 5331: 5324: 5321: 5311: 5308: 5304: 5298: 5293: 5288: 5284: 5278: 5273: 5268: 5264: 5260: 5255: 5250: 5246: 5223: 5216: 5209: 5204: 5200: 5194: 5189: 5182: 5177: 5173: 5165: 5160: 5155: 5151: 5146: 5139: 5132: 5127: 5123: 5117: 5112: 5105: 5100: 5096: 5088: 5083: 5078: 5074: 5060: 5054: 5049: 5045: 5041: 5036: 5031: 5027: 5020: 5014: 5011: 5002: 4996: 4991: 4987: 4983: 4978: 4973: 4969: 4962: 4956: 4953: 4927: 4922: 4918: 4914: 4909: 4904: 4900: 4896: 4891: 4887: 4883: 4868: 4861: 4854: 4844: 4821: 4817: 4811: 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3198: 3193: 3189: 3185: 3180: 3175: 3171: 3167: 3147: 3140: 3133: 3126: 3119: 3112: 3105: 3102: 3077: 3065: 3062: 3058: 3053: 3049: 3045: 3040: 3036: 3032: 3029: 3026: 3023: 3019: 3015: 3012: 3009: 3008: 3003: 2999: 2995: 2990: 2986: 2982: 2977: 2973: 2969: 2966: 2962: 2957: 2953: 2949: 2944: 2940: 2936: 2933: 2930: 2927: 2923: 2919: 2916: 2913: 2912: 2910: 2905: 2902: 2894: 2891: 2884: 2880: 2874: 2870: 2861: 2857: 2851: 2847: 2840: 2837: 2816: 2813: 2810: 2807: 2804: 2801: 2798: 2795: 2790: 2786: 2782: 2777: 2773: 2768: 2765: 2757: 2752: 2748: 2744: 2741: 2738: 2731: 2726: 2722: 2718: 2712: 2707: 2703: 2696: 2691: 2688: 2683: 2678: 2674: 2670: 2663: 2658: 2654: 2650: 2647: 2644: 2637: 2632: 2628: 2624: 2618: 2617: 2614: 2611: 2606: 2601: 2597: 2593: 2591: 2588: 2587: 2585: 2580: 2575: 2571: 2545: 2540: 2533: 2529: 2522: 2517: 2514: 2510: 2506: 2500: 2495: 2490: 2485: 2477: 2473: 2469: 2466: 2459: 2454: 2450: 2446: 2441: 2436: 2432: 2425: 2420: 2415: 2410: 2402: 2398: 2394: 2391: 2384: 2379: 2375: 2371: 2366: 2361: 2357: 2350: 2343: 2338: 2333: 2330: 2327: 2323: 2319: 2297: 2292: 2288: 2284: 2279: 2274: 2270: 2266: 2261: 2256: 2252: 2248: 2228: 2223: 2219: 2215: 2210: 2205: 2201: 2197: 2192: 2187: 2183: 2179: 2153: 2149: 2116: 2115:CMC l:c (1984) 2113: 2096: 2093: 2088: 2083: 2080: 2076: 2072: 2051: 2044: 2040: 2034: 2029: 2025: 2021: 2016: 2011: 2007: 2003: 2000: 1995: 1991: 1985: 1980: 1976: 1972: 1967: 1962: 1958: 1954: 1951: 1946: 1942: 1936: 1931: 1927: 1923: 1918: 1913: 1909: 1905: 1900: 1895: 1890: 1887: 1883: 1879: 1857: 1851: 1846: 1842: 1837: 1831: 1826: 1822: 1817: 1811: 1806: 1802: 1797: 1777: 1771: 1766: 1762: 1757: 1751: 1746: 1742: 1737: 1731: 1726: 1722: 1717: 1697: 1694: 1686: 1676: 1588: 1587: 1564: 1562: 1555: 1549: 1546: 1532: 1526: 1522: 1518: 1513: 1509: 1504: 1500: 1493: 1489: 1483: 1479: 1475: 1470: 1466: 1462: 1459: 1454: 1450: 1444: 1440: 1436: 1431: 1427: 1423: 1418: 1409: 1405: 1389: 1386: 1385: 1384: 1378: 1369: 1363: 1354: 1329: 1322: 1318: 1312: 1308: 1304: 1299: 1295: 1291: 1288: 1283: 1279: 1273: 1269: 1265: 1260: 1256: 1252: 1249: 1244: 1240: 1234: 1230: 1226: 1221: 1217: 1213: 1208: 1205: 1196: 1192: 1177: 1173: 1167: 1160: 1144: 1141: 1135: 1130: 1126: 1122: 1109: 1090: 1087: 1059: 1052: 1048: 1044: 1040: 1034: 1027: 1024: 1018: 1015: 1009: 1006: 1002: 998: 993: 989: 985: 982: 979: 974: 970: 966: 962: 956: 951: 948: 941: 938: 934: 928: 925: 923: 921: 918: 915: 914: 911: 908: 903: 899: 895: 890: 886: 882: 877: 874: 869: 866: 864: 859: 856: 850: 849: 821: 818: 813: 809: 805: 800: 796: 792: 787: 784: 779: 776: 774: 769: 766: 760: 759: 756: 751: 747: 743: 738: 734: 730: 727: 725: 723: 720: 717: 716: 713: 708: 704: 700: 695: 691: 687: 684: 682: 680: 677: 674: 673: 670: 665: 661: 657: 652: 648: 644: 641: 639: 637: 634: 631: 630: 606: 601: 593: 587: 583: 579: 576: 573: 568: 564: 560: 557: 554: 549: 545: 541: 538: 533: 532: 529: 526: 523: 517: 514: 508: 506: 499: 495: 491: 488: 485: 480: 476: 472: 469: 466: 461: 457: 453: 450: 445: 444: 442: 405: 400: 396: 390: 386: 382: 377: 373: 369: 366: 361: 357: 351: 347: 343: 338: 334: 330: 327: 322: 318: 312: 308: 304: 299: 295: 291: 288: 283: 252: 245: 241: 235: 231: 227: 222: 218: 214: 211: 206: 202: 196: 192: 188: 183: 179: 175: 172: 167: 163: 157: 153: 149: 144: 140: 136: 131: 72: 69: 67: 64: 40:color distance 26: 9: 6: 4: 3: 2: 9946: 9935: 9932: 9930: 9927: 9925: 9922: 9920: 9917: 9916: 9914: 9899: 9891: 9889: 9881: 9880: 9877: 9871: 9868: 9866: 9863: 9861: 9858: 9857: 9855: 9853: 9849: 9839: 9836: 9834: 9831: 9829: 9826: 9824: 9821: 9819: 9816: 9814: 9811: 9809: 9806: 9804: 9801: 9799: 9796: 9794: 9791: 9789: 9786: 9784: 9781: 9779: 9776: 9774: 9771: 9770: 9768: 9766: 9762: 9756: 9753: 9751: 9748: 9746: 9743: 9739: 9736: 9735: 9734: 9731: 9729: 9726: 9724: 9721: 9719: 9716: 9714: 9711: 9709: 9706: 9704: 9701: 9699: 9696: 9695: 9693: 9691: 9687: 9684: 9680: 9674: 9671: 9669: 9666: 9663: 9660: 9658: 9655: 9653: 9650: 9648: 9645: 9643: 9640: 9639: 9637: 9635:organizations 9631: 9621: 9618: 9616: 9613: 9609: 9606: 9604: 9601: 9599: 9596: 9594: 9591: 9589: 9586: 9585: 9584: 9581: 9577: 9576:Pastel colors 9574: 9573: 9572: 9569: 9565: 9562: 9561: 9560: 9557: 9556: 9554: 9550: 9542: 9539: 9537: 9534: 9532: 9529: 9527: 9524: 9523: 9521: 9517: 9514: 9513: 9512: 9509: 9508: 9506: 9504: 9500: 9494: 9491: 9489: 9486: 9484: 9481: 9479: 9476: 9474: 9471: 9469: 9466: 9464: 9461: 9459: 9456: 9454: 9451: 9449: 9446: 9444: 9441: 9440: 9438: 9436: 9432: 9429: 9427: 9423: 9412: 9411: 9407: 9404: 9403: 9399: 9397: 9394: 9391: 9388: 9386: 9383: 9381: 9378: 9376: 9373: 9371: 9368: 9364: 9361: 9359: 9358:Primary color 9356: 9355: 9354: 9351: 9350: 9348: 9346: 9342: 9336: 9333: 9331: 9328: 9326: 9325:Light-on-dark 9323: 9319: 9316: 9314: 9311: 9309: 9306: 9304: 9301: 9297: 9294: 9293: 9292: 9289: 9288: 9287: 9284: 9283: 9281: 9279: 9275: 9272: 9270: 9264: 9259: 9245: 9244:Color mapping 9242: 9240: 9237: 9231: 9228: 9227: 9226: 9223: 9219: 9216: 9215: 9214: 9211: 9210: 9209: 9206: 9202: 9199: 9197: 9194: 9193: 9192: 9189: 9187: 9184: 9182: 9179: 9175: 9172: 9170: 9169:Color balance 9167: 9166: 9165: 9162: 9161: 9159: 9157: 9153: 9147: 9146:Chromotherapy 9144: 9142: 9139: 9137: 9134: 9132: 9129: 9127: 9124: 9122: 9119: 9117: 9114: 9112: 9109: 9108: 9106: 9104: 9100: 9094: 9093: 9089: 9087: 9086:Tetrachromacy 9084: 9080: 9077: 9075: 9072: 9071: 9070: 9067: 9065: 9062: 9060: 9057: 9055: 9052: 9050: 9047: 9045: 9042: 9038: 9035: 9034: 9033: 9030: 9028: 9025: 9023: 9020: 9016: 9013: 9011: 9010:Achromatopsia 9008: 9007: 9006: 9003: 8999: 8996: 8995: 8994: 8993:Chromesthesia 8991: 8990: 8988: 8986: 8982: 8976: 8973: 8971: 8968: 8964: 8961: 8960: 8959: 8956: 8952: 8949: 8947: 8944: 8943: 8942: 8939: 8937: 8934: 8930: 8927: 8925: 8922: 8920: 8917: 8916: 8915: 8912: 8911: 8909: 8907:Color physics 8905: 8902: 8900: 8899:Color science 8896: 8891: 8884: 8879: 8877: 8872: 8870: 8865: 8864: 8861: 8854: 8851: 8848: 8845: 8842: 8839: 8838: 8827: 8825:0-901956-70-8 8821: 8817: 8813: 8808: 8804: 8800: 8796: 8792: 8788: 8784: 8780: 8776: 8775: 8769: 8765: 8761: 8757: 8753: 8749: 8744: 8743: 8723: 8719: 8712: 8694: 8687: 8680: 8672: 8668: 8664: 8660: 8653: 8651: 8641: 8636: 8632: 8628: 8624: 8617: 8602: 8594: 8587: 8582: 8567: 8560: 8552: 8548: 8544: 8540: 8536: 8529: 8522: 8514: 8508: 8504: 8499: 8498: 8489: 8478: 8463: 8457: 8442: 8435: 8424: 8420: 8416: 8409: 8403: 8388: 8381: 8374: 8370: 8364: 8356: 8354:0-8493-0900-X 8350: 8346: 8342: 8341: 8333: 8331: 8315: 8309: 8307: 8300: 8295: 8287: 8285:9780132777957 8281: 8277: 8276: 8268: 8254: 8252:9780470849026 8248: 8244: 8243: 8235: 8221: 8219:9783110154313 8215: 8211: 8210: 8202: 8194: 8190: 8186: 8182: 8178: 8174: 8167: 8156: 8150: 8139: 8132: 8126: 8118: 8114: 8110: 8106: 8099: 8091: 8087: 8081: 8073: 8069: 8063: 8061: 8056: 8029: 8024: 8020: 7994: 7991: 7988: 7981: 7972: 7968: 7962: 7958: 7943: 7940: 7938: 7935: 7934: 7928: 7922: 7915: 7913: 7908: 7906: 7902: 7898: 7894: 7890: 7885: 7883: 7879: 7878: 7873: 7866: 7861: 7856: 7846: 7843: 7828: 7825: 7795: 7782: 7768: 7763: 7757: 7752: 7745: 7741: 7734: 7730: 7726: 7722: 7713: 7703: 7698: 7694: 7690: 7687: 7684: 7679: 7675: 7670: 7666: 7663: 7654: 7650: 7646: 7640: 7636: 7626: 7615: 7611: 7601: 7591: 7588: 7585: 7580: 7576: 7567: 7554: 7539: 7532: 7529: 7526: 7523: 7518: 7514: 7497: 7490: 7487: 7484: 7481: 7476: 7472: 7462: 7456: 7452: 7449: 7440: 7433: 7427: 7424: 7417: 7412: 7408: 7405: 7396: 7389: 7384: 7378: 7375: 7372: 7367: 7363: 7354: 7336: 7332: 7328: 7313: 7306: 7300: 7297: 7294: 7291: 7283: 7279: 7275: 7260: 7253: 7247: 7244: 7241: 7238: 7220: 7213: 7207: 7204: 7201: 7198: 7190: 7186: 7182: 7167: 7157: 7154: 7151: 7148: 7145: 7142: 7139: 7131: 7129: 7122: 7112: 7095: 7085: 7077: 7055: 7051: 7047: 7037: 7033: 7029: 7019: 7015: 7011: 7006: 7002: 6998: 6994: 6983: 6979: 6975: 6965: 6961: 6956: 6950: 6946: 6937: 6933: 6929: 6919: 6915: 6911: 6901: 6897: 6884: 6880: 6876: 6866: 6862: 6858: 6848: 6844: 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5757: 5751: 5747: 5741: 5731: 5727: 5716: 5712: 5706: 5702: 5698: 5690: 5686: 5683: 5677: 5673: 5667: 5657: 5653: 5640: 5636: 5632: 5628: 5624: 5620: 5616: 5612: 5607: 5604: 5587: 5576: 5572: 5568: 5558: 5554: 5547: 5532: 5520: 5506: 5496: 5492: 5488: 5483: 5473: 5463: 5453: 5443: 5440: 5436: 5430: 5425: 5420: 5416: 5410: 5405: 5400: 5396: 5392: 5382: 5378: 5372: 5362: 5358: 5354: 5349: 5339: 5329: 5319: 5309: 5306: 5302: 5296: 5291: 5286: 5282: 5276: 5271: 5266: 5262: 5258: 5248: 5244: 5235: 5221: 5214: 5207: 5202: 5198: 5192: 5187: 5180: 5175: 5171: 5163: 5158: 5153: 5149: 5144: 5137: 5130: 5125: 5121: 5115: 5110: 5103: 5098: 5094: 5086: 5081: 5076: 5072: 5058: 5052: 5047: 5043: 5039: 5034: 5029: 5025: 5018: 5009: 5000: 4994: 4989: 4985: 4981: 4976: 4971: 4967: 4960: 4951: 4940: 4925: 4920: 4916: 4912: 4907: 4902: 4898: 4894: 4885: 4873: 4871: 4864: 4857: 4849: 4847: 4839: 4819: 4815: 4809: 4805: 4798: 4795: 4780: 4776: 4770: 4766: 4759: 4756: 4744: 4740: 4736: 4731: 4726: 4718: 4714: 4708: 4704: 4697: 4694: 4684: 4679: 4674: 4669: 4661: 4657: 4651: 4647: 4640: 4637: 4627: 4622: 4617: 4612: 4604: 4600: 4594: 4590: 4583: 4580: 4570: 4563: 4558: 4553: 4549: 4530: 4523: 4516: 4513: 4506: 4505: 4504: 4502: 4492: 4476: 4471: 4468: 4464: 4444: 4441: 4425: 4421: 4413: 4412: 4408: 4405: 4389: 4385: 4377: 4376: 4372: 4369: 4353: 4349: 4341: 4340: 4336: 4334:graphic arts 4333: 4331: 4330: 4327: 4326: 4325: 4320: 4313: 4309: 4302: 4295: 4287: 4270: 4265: 4260: 4256: 4250: 4246: 4242: 4239: 4236: 4234: 4227: 4223: 4215: 4210: 4205: 4201: 4195: 4191: 4187: 4184: 4181: 4179: 4172: 4168: 4160: 4157: 4154: 4152: 4145: 4141: 4133: 4128: 4123: 4119: 4115: 4110: 4105: 4101: 4097: 4095: 4088: 4084: 4073: 4068: 4063: 4059: 4055: 4050: 4045: 4041: 4037: 4035: 4028: 4024: 4013: 4006: 3999: 3995: 3986: 3981: 3974: 3970: 3961: 3956: 3949: 3945: 3934: 3927: 3920: 3916: 3907: 3902: 3895: 3891: 3882: 3877: 3870: 3865: 3862: 3858: 3847: 3845: 3838: 3834: 3823: 3818: 3813: 3809: 3805: 3800: 3795: 3791: 3787: 3785: 3778: 3774: 3763: 3756: 3749: 3744: 3740: 3734: 3729: 3722: 3717: 3713: 3705: 3703: 3696: 3691: 3687: 3679: 3672: 3665: 3660: 3656: 3650: 3645: 3638: 3633: 3629: 3621: 3619: 3612: 3607: 3603: 3595: 3590: 3585: 3581: 3577: 3572: 3567: 3563: 3559: 3557: 3550: 3546: 3530: 3527: 3514: 3507: 3502: 3494: 3490: 3484: 3480: 3472: 3468: 3458: 3453: 3448: 3443: 3435: 3431: 3425: 3421: 3413: 3409: 3399: 3394: 3389: 3384: 3376: 3372: 3366: 3362: 3354: 3350: 3340: 3333: 3328: 3323: 3319: 3307: 3288: 3283: 3279: 3275: 3270: 3265: 3261: 3257: 3252: 3247: 3243: 3214: 3209: 3205: 3201: 3196: 3191: 3187: 3183: 3178: 3173: 3169: 3157: 3152: 3150: 3143: 3136: 3129: 3122: 3115: 3101: 3099: 3095: 3090: 3051: 3047: 3043: 3038: 3034: 3027: 3024: 3021: 3013: 3010: 3001: 2997: 2993: 2988: 2984: 2980: 2975: 2971: 2955: 2951: 2947: 2942: 2938: 2931: 2928: 2925: 2917: 2914: 2908: 2903: 2900: 2892: 2889: 2882: 2878: 2872: 2868: 2859: 2855: 2849: 2845: 2838: 2835: 2827: 2811: 2808: 2805: 2802: 2799: 2796: 2788: 2784: 2780: 2775: 2771: 2766: 2763: 2755: 2750: 2746: 2742: 2739: 2736: 2729: 2724: 2720: 2716: 2710: 2705: 2701: 2689: 2686: 2681: 2676: 2672: 2661: 2656: 2652: 2648: 2645: 2642: 2635: 2630: 2626: 2622: 2612: 2609: 2604: 2599: 2595: 2589: 2583: 2578: 2573: 2569: 2560: 2543: 2538: 2531: 2527: 2520: 2515: 2512: 2508: 2498: 2493: 2488: 2483: 2475: 2471: 2467: 2464: 2457: 2452: 2448: 2444: 2439: 2434: 2430: 2423: 2418: 2413: 2408: 2400: 2396: 2392: 2389: 2382: 2377: 2373: 2369: 2364: 2359: 2355: 2348: 2341: 2336: 2331: 2328: 2325: 2321: 2309: 2290: 2286: 2282: 2277: 2272: 2268: 2264: 2259: 2254: 2250: 2221: 2217: 2213: 2208: 2203: 2199: 2195: 2190: 2185: 2181: 2168: 2151: 2147: 2138: 2134: 2130: 2126: 2122: 2112: 2110: 2094: 2091: 2086: 2081: 2078: 2074: 2062: 2049: 2042: 2032: 2027: 2023: 2019: 2014: 2009: 2005: 1998: 1993: 1983: 1978: 1974: 1970: 1965: 1960: 1956: 1949: 1944: 1934: 1929: 1925: 1921: 1916: 1911: 1907: 1898: 1893: 1888: 1885: 1881: 1869: 1849: 1844: 1840: 1835: 1829: 1824: 1820: 1815: 1809: 1804: 1800: 1769: 1764: 1760: 1755: 1749: 1744: 1740: 1735: 1729: 1724: 1720: 1707: 1702: 1693: 1689: 1685: 1675: 1668: 1661: 1658: 1652: 1648: 1644: 1639: 1637: 1633: 1629: 1625: 1621: 1617: 1607: 1601: 1595: 1584: 1574: 1568: 1565:This section 1563: 1559: 1554: 1553: 1545: 1530: 1524: 1520: 1516: 1511: 1507: 1502: 1498: 1491: 1481: 1477: 1473: 1468: 1464: 1457: 1452: 1442: 1438: 1434: 1429: 1425: 1416: 1407: 1395: 1381: 1377: 1373: 1370: 1366: 1362: 1358: 1355: 1352: 1348: 1345: 1344: 1343: 1340: 1327: 1320: 1310: 1306: 1302: 1297: 1293: 1286: 1281: 1271: 1267: 1263: 1258: 1254: 1247: 1242: 1232: 1228: 1224: 1219: 1215: 1206: 1203: 1194: 1182: 1180: 1166: 1159: 1154: 1150: 1140: 1134: 1120: 1108: 1106: 1100: 1095: 1086: 1083: 1079: 1074: 1057: 1050: 1046: 1038: 1032: 1022: 1016: 1013: 1007: 1004: 1000: 996: 991: 987: 980: 977: 972: 968: 960: 954: 946: 939: 936: 932: 926: 924: 919: 909: 901: 897: 893: 888: 884: 875: 872: 867: 865: 854: 839: 836: 819: 811: 807: 803: 798: 794: 785: 782: 777: 775: 764: 754: 749: 745: 741: 736: 732: 728: 726: 721: 711: 706: 702: 698: 693: 689: 685: 683: 678: 668: 663: 659: 655: 650: 646: 642: 640: 635: 619: 599: 585: 581: 574: 571: 566: 562: 555: 552: 547: 543: 536: 527: 524: 521: 512: 504: 497: 493: 486: 483: 478: 474: 467: 464: 459: 455: 448: 440: 430: 424: 422: 416: 403: 398: 388: 384: 380: 375: 371: 364: 359: 349: 345: 341: 336: 332: 325: 320: 310: 306: 302: 297: 293: 286: 281: 266: 263: 250: 243: 233: 229: 225: 220: 216: 209: 204: 194: 190: 186: 181: 177: 170: 165: 155: 151: 147: 142: 138: 129: 116: 113: 92: 90: 86: 82: 78: 63: 61: 58: 54: 49: 45: 41: 37: 33: 32:color science 19: 9929:Color vision 9608:Fluorescence 9571:Colorfulness 9564:Dichromatism 9408: 9400: 9370:Chromaticity 9353:Color mixing 9345:Color theory 9278:Color scheme 9141:Chromophobia 9090: 8811: 8778: 8772: 8755: 8751: 8727:13 September 8725:. Retrieved 8721: 8716:Huda, Mike. 8711: 8700:. Retrieved 8693:the original 8679: 8665:(1): 21–30. 8662: 8658: 8630: 8626: 8616: 8605:. Retrieved 8593: 8581: 8570:. Retrieved 8559: 8538: 8534: 8521: 8496: 8488: 8477: 8466:. Retrieved 8456: 8445:. Retrieved 8434: 8423:the original 8418: 8414: 8402: 8391:. Retrieved 8380: 8372: 8368: 8363: 8339: 8318:. Retrieved 8294: 8274: 8267: 8256:. Retrieved 8241: 8234: 8223:. Retrieved 8208: 8201: 8176: 8172: 8166: 8149: 8125: 8108: 8104: 8098: 8089: 8080: 8071: 7961: 7920: 7916: 7909: 7886: 7876: 7875: 7871: 7870: 7844: 7783: 7568: 7355: 7132: 7117: 7107: 7090: 7080: 7079:When either 7078: 6486: 6467: 6457: 6456:When either 6455: 6029: 6022: 6010: 6006: 5999: 5989: 5811: 5521: 5236: 4941: 4874: 4866: 4859: 4852: 4850: 4842: 4840: 4538: 4498: 4452: 4318: 4311: 4304: 4297: 4290: 4288: 3531: 3528: 3308: 3155: 3153: 3145: 3138: 3131: 3124: 3117: 3110: 3107: 3091: 2828: 2561: 2310: 2169: 2132: 2118: 2063: 1870: 1703: 1699: 1687: 1683: 1673: 1666: 1662: 1656: 1640: 1636:Ewald Hering 1627: 1623: 1620:Greek letter 1605: 1599: 1591: 1578: 1566: 1391: 1379: 1375: 1371: 1364: 1360: 1356: 1350: 1346: 1341: 1183: 1164: 1157: 1146: 1138: 1116: 1103: 1092: 1075: 840: 837: 620: 425: 417: 267: 264: 117: 114: 93: 88: 84: 80: 74: 39: 35: 29: 9919:Color space 9745:Color chart 9603:Iridescence 9435:Basic terms 9426:Color terms 9380:Color wheel 9375:Color solid 9239:Color space 9225:subtractive 9208:Color model 9079:Unique hues 8975:Colorimetry 8941:Chromophore 8072:Compu Phase 7971:quasimetric 7967:commutative 7912:ellipsoidal 7872:Tolerancing 7128:Sharma 2005 6484:, eqn. 10. 6482:Sharma 2005 6025:atan2(y, x) 6018:Sharma 2005 5648:where  5067:where  2137:quasimetric 1626:stands for 77:color space 60:color space 9913:Categories 9765:Shades of: 9598:Brightness 9330:Web colors 9286:Color tool 9269:philosophy 9174:Color cast 9074:Afterimage 9064:Metamerism 9037:Color code 9032:Color task 9015:Dichromacy 8702:2014-12-02 8607:2023-10-24 8572:2009-04-16 8468:2009-04-16 8447:2011-03-23 8393:2009-04-16 8320:2009-04-16 8258:2014-12-02 8225:2014-12-02 8052:References 7853:See also: 6020:, eqn. 7. 5992:atan2(b, a 4289:and where 1628:Empfindung 1548:CIELAB ΔE* 1097:See also: 9615:Grayscale 9588:Lightness 9583:Luminance 9392:(fashion) 9092:The dress 8545:: 21–30. 8345:CRC Press 8193:209914019 8030:∗ 7948:Footnotes 7849:Tolerance 7822:Δ 7800:′ 7792:Δ 7746:∘ 7735:∘ 7727:− 7717:¯ 7699:− 7691:⁡ 7685:⋅ 7680:∘ 7667:⁡ 7630:¯ 7605:¯ 7589:− 7550:′ 7543:¯ 7508:′ 7501:¯ 7450:− 7444:¯ 7406:− 7400:¯ 7337:∘ 7329:− 7324:′ 7317:¯ 7301:⁡ 7292:− 7284:∘ 7271:′ 7264:¯ 7248:⁡ 7231:′ 7224:¯ 7208:⁡ 7191:∘ 7183:− 7178:′ 7171:¯ 7158:⁡ 7149:− 7056:∘ 7048:≥ 7043:′ 7025:′ 7007:∘ 6989:′ 6976:− 6971:′ 6938:∘ 6930:− 6925:′ 6907:′ 6885:∘ 6872:′ 6854:′ 6836:∘ 6818:′ 6805:− 6800:′ 6767:∘ 6754:′ 6736:′ 6714:∘ 6706:≤ 6696:′ 6683:− 6678:′ 6645:′ 6627:′ 6598:′ 6591:¯ 6564:′ 6556:Δ 6550:⁡ 6540:′ 6525:′ 6502:′ 6494:Δ 6433:′ 6415:′ 6397:∘ 6379:′ 6366:− 6361:′ 6339:∘ 6331:− 6326:′ 6313:− 6308:′ 6289:′ 6276:≤ 6271:′ 6253:∘ 6235:′ 6222:− 6217:′ 6195:∘ 6182:′ 6169:− 6164:′ 6145:∘ 6137:≤ 6127:′ 6114:− 6109:′ 6087:′ 6074:− 6069:′ 6037:Δ 5974:∘ 5955:′ 5937:∗ 5911:′ 5892:∘ 5873:′ 5855:∗ 5829:′ 5787:∗ 5737:′ 5713:∗ 5663:′ 5629:− 5600:Δ 5582:′ 5564:′ 5543:′ 5536:¯ 5477:¯ 5457:¯ 5444:− 5426:∗ 5406:∗ 5388:′ 5343:¯ 5323:¯ 5310:− 5292:∗ 5272:∗ 5254:′ 5208:∗ 5181:∗ 5159:∗ 5131:∗ 5104:∗ 5082:∗ 5053:∗ 5035:∗ 5013:¯ 4995:∗ 4977:∗ 4955:¯ 4926:∗ 4913:− 4908:∗ 4890:′ 4882:Δ 4792:Δ 4753:Δ 4691:Δ 4634:Δ 4577:Δ 4559:∗ 4546:Δ 4495:CIEDE2000 4477:∗ 4461:Δ 4337:textiles 4266:∗ 4211:∗ 4129:∗ 4116:− 4111:∗ 4089:∗ 4081:Δ 4069:∗ 4056:− 4051:∗ 4029:∗ 4021:Δ 4000:∗ 3992:Δ 3987:− 3975:∗ 3967:Δ 3950:∗ 3942:Δ 3921:∗ 3913:Δ 3908:− 3896:∗ 3888:Δ 3883:− 3871:∗ 3855:Δ 3839:∗ 3831:Δ 3819:∗ 3806:− 3801:∗ 3779:∗ 3771:Δ 3750:∗ 3723:∗ 3697:∗ 3666:∗ 3639:∗ 3613:∗ 3591:∗ 3578:− 3573:∗ 3551:∗ 3543:Δ 3473:∗ 3465:Δ 3414:∗ 3406:Δ 3355:∗ 3347:Δ 3329:∗ 3316:Δ 3289:∗ 3271:∗ 3253:∗ 3215:∗ 3197:∗ 3179:∗ 3069:otherwise 3052:∘ 3028:⁡ 3002:∘ 2994:≤ 2981:≤ 2976:∘ 2956:∘ 2932:⁡ 2879:∗ 2856:∗ 2809:− 2756:∗ 2730:∗ 2687:≥ 2682:∗ 2662:∗ 2636:∗ 2605:∗ 2521:∗ 2505:Δ 2468:× 2458:∗ 2445:− 2440:∗ 2393:× 2383:∗ 2370:− 2365:∗ 2337:∗ 2318:Δ 2278:∗ 2260:∗ 2209:∗ 2191:∗ 2125:CIE L*C*h 2092:≈ 2087:∗ 2071:Δ 2033:∗ 2020:− 2015:∗ 1984:∗ 1971:− 1966:∗ 1935:∗ 1922:− 1917:∗ 1894:∗ 1878:Δ 1850:∗ 1830:∗ 1810:∗ 1770:∗ 1750:∗ 1730:∗ 1581:July 2021 1573:talk page 1517:− 1474:− 1435:− 1404:Δ 1303:− 1264:− 1225:− 1191:Δ 1119:CAM02-UCS 1043:Δ 1026:¯ 1017:− 984:Δ 965:Δ 950:¯ 917:Δ 858:¯ 768:¯ 742:− 719:Δ 699:− 676:Δ 656:− 633:Δ 596:otherwise 578:Δ 559:Δ 540:Δ 516:¯ 490:Δ 471:Δ 452:Δ 381:− 342:− 303:− 226:− 187:− 148:− 66:Euclidean 9934:Distance 9888:Category 9870:Lighting 9593:Darkness 9413:(Goethe) 9213:additive 9201:Quattron 8803:20963027 8138:Archived 7931:See also 7897:ellipses 7829:′ 7723:′ 7637:′ 7612:′ 6044:′ 5761:′ 5687:′ 5641:′ 5625:′ 5608:′ 4799:′ 4760:′ 4698:′ 4641:′ 4584:′ 3096:and the 2623:0.040975 1110:—  421:variance 277:distance 126:distance 9852:Related 9813:Magenta 9738:history 9642:Pantone 8929:Visible 8924:Rainbow 8783:Bibcode 7887:In the 2649:0.01765 2133:CMC l:c 621:where: 109:  103:  97:  46:. This 9865:Qualia 9860:Vision 9808:Purple 9803:Violet 9783:Yellow 9778:Orange 9473:Orange 9468:Purple 9458:Yellow 8892:topics 8822:  8801:  8722:X-Rite 8509:  8351:  8282:  8249:  8216:  8191:  8090:X-Rite 7937:CIELAB 7905:CIELAB 7901:CIELUV 4865:, and 4445:0.014 4442:0.015 4409:0.048 4406:0.045 3529:where 3144:, and 2743:0.0131 2717:0.0638 2135:. The 1643:CIELAB 1359:= 0.5 48:metric 44:colors 9898:Index 9838:Black 9828:White 9823:Brown 9788:Green 9690:Lists 9682:Names 9664:(CIE) 9633:Color 9493:Brown 9488:White 9478:Black 9448:Green 9267:Color 8963:Water 8919:Light 8890:Color 8696:(PDF) 8689:(PDF) 8541:(1). 8531:(PDF) 8426:(PDF) 8411:(PDF) 8408:"CMC" 8373:twice 8189:S2CID 8158:(PDF) 8141:(PDF) 8134:(PDF) 8044:only. 7953:Notes 7882:gamut 7533:0.015 7491:0.045 7385:0.015 5920:atan2 5838:atan2 3104:CIE94 2767:0.638 2590:0.511 1696:CIE76 1618:is a 1616:delta 55:in a 9833:Gray 9818:Pink 9798:Blue 9793:Cyan 9483:Gray 9463:Pink 9443:Blue 9230:CMYK 8820:ISBN 8799:PMID 8729:2024 8507:ISBN 8369:half 8349:ISBN 8280:ISBN 8247:ISBN 8214:ISBN 7903:and 7295:0.20 7242:0.32 7202:0.24 7152:0.17 6999:> 6877:< 6828:> 6420:> 6389:> 6245:> 6005:and 4317:and 4296:and 3123:and 3011:0.36 2915:0.56 2893:1900 2610:< 2308:is: 1788:and 1663:All 1634:and 1592:The 1412:HyAB 1151:and 522:< 429:sRGB 71:sRGB 9773:Red 9559:Hue 9453:Red 9218:RGB 8791:doi 8760:doi 8667:doi 8635:doi 8547:doi 8503:147 8181:doi 8113:doi 7924:CMC 7731:275 7688:exp 7664:sin 7298:cos 7245:cos 7205:cos 7155:cos 7106:is 7089:or 7052:360 7003:180 6934:360 6881:360 6832:180 6763:360 6710:180 6547:sin 6466:or 6393:180 6335:360 6249:180 6191:360 6141:180 5970:360 5964:mod 5888:360 5882:mod 3094:D65 3025:cos 3022:0.4 2998:345 2972:164 2952:168 2929:cos 2926:0.2 2109:JND 2095:2.3 1677:ITP 1207:720 1199:ITP 1168:ITP 1161:ITP 1153:HDR 1149:WCG 1142:ITP 1082:HSL 1080:or 1078:HSV 1033:256 1014:255 955:256 525:128 38:or 30:In 9915:: 8818:. 8797:. 8789:. 8779:33 8777:. 8756:15 8754:. 8750:. 8720:. 8663:30 8661:. 8649:^ 8631:12 8629:. 8625:. 8539:30 8537:. 8533:. 8505:. 8417:. 8413:. 8347:. 8329:^ 8305:^ 8187:. 8177:45 8175:. 8109:42 8107:. 8088:. 8070:. 8059:^ 7921:E* 7907:. 7742:25 7676:60 7651:25 7453:50 7425:20 7409:50 7333:63 7187:30 6027:. 5493:25 5359:25 4858:, 4848:. 4554:00 4373:2 4370:1 4310:, 3324:94 3137:, 3116:, 3100:. 3048:35 2690:16 2613:16 1708:, 1688:ab 1667:E* 1638:. 1612:dE 1610:, 1606:dE 1600:E* 1374:= 1349:= 1172:IC 1133:. 87:, 83:, 62:. 34:, 8882:e 8875:t 8868:v 8828:. 8805:. 8793:: 8785:: 8766:. 8762:: 8731:. 8705:. 8673:. 8669:: 8643:. 8637:: 8610:. 8575:. 8553:. 8549:: 8515:. 8471:. 8450:. 8419:8 8396:. 8357:. 8323:. 8288:. 8261:. 8228:. 8195:. 8183:: 8119:. 8115:: 8092:. 8074:. 8025:1 8021:C 7998:} 7995:H 7992:, 7989:C 7986:{ 7982:S 7919:Δ 7826:h 7796:H 7769:] 7764:) 7758:2 7753:] 7714:H 7704:[ 7695:( 7671:[ 7655:7 7647:+ 7641:7 7627:C 7616:7 7602:C 7592:2 7586:= 7581:T 7577:R 7555:T 7540:C 7530:+ 7527:1 7524:= 7519:H 7515:S 7498:C 7488:+ 7485:1 7482:= 7477:C 7473:S 7463:2 7457:) 7441:L 7434:( 7428:+ 7418:2 7413:) 7397:L 7390:( 7379:+ 7376:1 7373:= 7368:L 7364:S 7342:) 7314:H 7307:4 7304:( 7289:) 7280:6 7276:+ 7261:H 7254:3 7251:( 7239:+ 7236:) 7221:H 7214:2 7211:( 7199:+ 7196:) 7168:H 7161:( 7146:1 7143:= 7140:T 7124:2 7120:′ 7118:h 7116:+ 7114:1 7110:′ 7108:h 7104:′ 7101:H 7097:2 7093:′ 7091:C 7087:1 7083:′ 7081:C 7038:2 7034:h 7030:+ 7020:1 7016:h 7012:, 6995:| 6984:2 6980:h 6966:1 6962:h 6957:| 6951:2 6947:/ 6943:) 6920:2 6916:h 6912:+ 6902:1 6898:h 6894:( 6867:2 6863:h 6859:+ 6849:1 6845:h 6841:, 6824:| 6813:2 6809:h 6795:1 6791:h 6786:| 6780:2 6776:/ 6772:) 6759:+ 6749:2 6745:h 6741:+ 6731:1 6727:h 6723:( 6702:| 6691:2 6687:h 6673:1 6669:h 6664:| 6658:2 6654:/ 6650:) 6640:2 6636:h 6632:+ 6622:1 6618:h 6614:( 6608:{ 6603:= 6588:H 6580:, 6577:) 6574:2 6570:/ 6560:h 6553:( 6535:2 6531:C 6520:1 6516:C 6510:2 6507:= 6498:H 6478:′ 6474:2 6470:′ 6468:C 6464:1 6460:′ 6458:C 6428:1 6424:h 6410:2 6406:h 6402:, 6385:| 6374:2 6370:h 6356:1 6352:h 6347:| 6321:1 6317:h 6303:2 6299:h 6284:1 6280:h 6266:2 6262:h 6258:, 6241:| 6230:2 6226:h 6212:1 6208:h 6203:| 6187:+ 6177:1 6173:h 6159:2 6155:h 6133:| 6122:2 6118:h 6104:1 6100:h 6095:| 6082:1 6078:h 6064:2 6060:h 6053:{ 6048:= 6041:h 6013:′ 6011:C 6007:b 6002:′ 6000:a 5996:) 5994:′ 5960:) 5950:2 5946:a 5942:, 5932:2 5928:b 5924:( 5916:= 5906:2 5902:h 5897:, 5878:) 5868:1 5864:a 5860:, 5850:1 5846:b 5842:( 5834:= 5824:1 5820:h 5791:2 5781:2 5777:b 5773:+ 5765:2 5752:2 5748:a 5742:= 5732:2 5728:C 5717:2 5707:1 5703:b 5699:+ 5691:2 5678:1 5674:a 5668:= 5658:1 5654:C 5637:1 5633:C 5621:2 5617:C 5613:= 5605:C 5588:2 5577:2 5573:C 5569:+ 5559:1 5555:C 5548:= 5533:C 5507:) 5497:7 5489:+ 5484:7 5474:C 5464:7 5454:C 5441:1 5437:( 5431:2 5421:2 5417:a 5411:+ 5401:2 5397:a 5393:= 5383:2 5379:a 5373:) 5363:7 5355:+ 5350:7 5340:C 5330:7 5320:C 5307:1 5303:( 5297:2 5287:1 5283:a 5277:+ 5267:1 5263:a 5259:= 5249:1 5245:a 5222:, 5215:2 5203:2 5199:b 5193:+ 5188:2 5176:2 5172:a 5164:= 5154:2 5150:C 5145:, 5138:2 5126:1 5122:b 5116:+ 5111:2 5099:1 5095:a 5087:= 5077:1 5073:C 5059:2 5048:2 5044:C 5040:+ 5030:1 5026:C 5019:= 5010:C 5001:2 4990:2 4986:L 4982:+ 4972:1 4968:L 4961:= 4952:L 4921:1 4917:L 4903:2 4899:L 4895:= 4886:L 4869:H 4867:k 4862:C 4860:k 4855:L 4853:k 4845:T 4843:R 4820:H 4816:S 4810:H 4806:k 4796:H 4781:C 4777:S 4771:C 4767:k 4757:C 4745:T 4741:R 4737:+ 4732:2 4727:) 4719:H 4715:S 4709:H 4705:k 4695:H 4685:( 4680:+ 4675:2 4670:) 4662:C 4658:S 4652:C 4648:k 4638:C 4628:( 4623:+ 4618:2 4613:) 4605:L 4601:S 4595:L 4591:k 4581:L 4571:( 4564:= 4550:E 4535:) 4533:H 4528:) 4526:C 4521:) 4519:L 4509:T 4472:b 4469:a 4465:H 4426:2 4422:K 4390:1 4386:K 4354:L 4350:k 4322:2 4319:K 4315:1 4312:K 4307:L 4305:k 4300:H 4298:k 4293:C 4291:k 4271:, 4261:1 4257:C 4251:2 4247:K 4243:+ 4240:1 4237:= 4228:H 4224:S 4216:, 4206:1 4202:C 4196:1 4192:K 4188:+ 4185:1 4182:= 4173:C 4169:S 4161:, 4158:1 4155:= 4146:L 4142:S 4134:, 4124:2 4120:b 4106:1 4102:b 4098:= 4085:b 4074:, 4064:2 4060:a 4046:1 4042:a 4038:= 4025:a 4014:, 4007:2 3996:C 3982:2 3971:b 3962:+ 3957:2 3946:a 3935:= 3928:2 3917:C 3903:2 3892:L 3878:2 3866:b 3863:a 3859:E 3848:= 3835:H 3824:, 3814:2 3810:C 3796:1 3792:C 3788:= 3775:C 3764:, 3757:2 3745:2 3741:b 3735:+ 3730:2 3718:2 3714:a 3706:= 3692:2 3688:C 3680:, 3673:2 3661:1 3657:b 3651:+ 3646:2 3634:1 3630:a 3622:= 3608:1 3604:C 3596:, 3586:2 3582:L 3568:1 3564:L 3560:= 3547:L 3515:, 3508:2 3503:) 3495:H 3491:S 3485:H 3481:k 3469:H 3459:( 3454:+ 3449:2 3444:) 3436:C 3432:S 3426:C 3422:k 3410:C 3400:( 3395:+ 3390:2 3385:) 3377:L 3373:S 3367:L 3363:k 3351:L 3341:( 3334:= 3320:E 3294:) 3284:2 3280:b 3276:, 3266:2 3262:a 3258:, 3248:2 3244:L 3240:( 3220:) 3210:1 3206:b 3202:, 3192:1 3188:a 3184:, 3174:1 3170:L 3166:( 3156:E 3148:H 3146:S 3141:C 3139:S 3134:L 3132:S 3127:H 3125:k 3120:C 3118:k 3113:L 3111:k 3061:| 3057:) 3044:+ 3039:1 3035:h 3031:( 3018:| 3014:+ 2989:1 2985:h 2965:| 2961:) 2948:+ 2943:1 2939:h 2935:( 2922:| 2918:+ 2909:{ 2904:= 2901:T 2890:+ 2883:4 2873:1 2869:C 2860:4 2850:1 2846:C 2839:= 2836:F 2815:) 2812:F 2806:1 2803:+ 2800:T 2797:F 2794:( 2789:C 2785:S 2781:= 2776:H 2772:S 2764:+ 2751:1 2747:C 2740:+ 2737:1 2725:1 2721:C 2711:= 2706:C 2702:S 2677:1 2673:L 2657:1 2653:L 2646:+ 2643:1 2631:1 2627:L 2600:1 2596:L 2584:{ 2579:= 2574:L 2570:S 2544:2 2539:) 2532:H 2528:S 2516:b 2513:a 2509:H 2499:( 2494:+ 2489:2 2484:) 2476:C 2472:S 2465:c 2453:1 2449:C 2435:2 2431:C 2424:( 2419:+ 2414:2 2409:) 2401:L 2397:S 2390:l 2378:1 2374:L 2360:2 2356:L 2349:( 2342:= 2332:C 2329:M 2326:C 2322:E 2296:) 2291:1 2287:h 2283:, 2273:1 2269:C 2265:, 2255:1 2251:L 2247:( 2227:) 2222:2 2218:h 2214:, 2204:2 2200:C 2196:, 2186:2 2182:L 2178:( 2152:1 2148:h 2082:b 2079:a 2075:E 2050:. 2043:2 2039:) 2028:1 2024:b 2010:2 2006:b 2002:( 1999:+ 1994:2 1990:) 1979:1 1975:a 1961:2 1957:a 1953:( 1950:+ 1945:2 1941:) 1930:1 1926:L 1912:2 1908:L 1904:( 1899:= 1889:b 1886:a 1882:E 1856:) 1845:2 1841:b 1836:, 1825:2 1821:a 1816:, 1805:2 1801:L 1796:( 1776:) 1765:1 1761:b 1756:, 1745:1 1741:a 1736:, 1725:1 1721:L 1716:( 1684:E 1682:Δ 1674:E 1672:Δ 1665:Δ 1657:E 1655:Δ 1624:E 1608:* 1598:Δ 1583:) 1579:( 1575:. 1531:| 1525:1 1521:L 1512:2 1508:L 1503:| 1499:+ 1492:2 1488:) 1482:1 1478:b 1469:2 1465:b 1461:( 1458:+ 1453:2 1449:) 1443:1 1439:a 1430:2 1426:a 1422:( 1417:= 1408:E 1383:. 1380:P 1376:C 1372:P 1368:, 1365:T 1361:C 1357:T 1353:, 1351:I 1347:I 1328:, 1321:2 1317:) 1311:2 1307:P 1298:1 1294:P 1290:( 1287:+ 1282:2 1278:) 1272:2 1268:T 1259:1 1255:T 1251:( 1248:+ 1243:2 1239:) 1233:2 1229:I 1220:1 1216:I 1212:( 1204:= 1195:E 1178:P 1176:C 1174:T 1165:E 1158:E 1156:Δ 1139:E 1131:z 1129:b 1127:z 1125:a 1123:z 1058:. 1051:2 1047:B 1039:) 1023:r 1008:+ 1005:2 1001:( 997:+ 992:2 988:G 981:4 978:+ 973:2 969:R 961:) 947:r 940:+ 937:2 933:( 927:= 920:C 910:, 907:) 902:2 898:R 894:+ 889:1 885:R 881:( 876:2 873:1 868:= 855:r 820:. 817:) 812:2 808:R 804:+ 799:1 795:R 791:( 786:2 783:1 778:= 765:R 755:, 750:2 746:B 737:1 733:B 729:= 722:B 712:, 707:2 703:G 694:1 690:G 686:= 679:G 669:, 664:2 660:R 651:1 647:R 643:= 636:R 600:, 586:2 582:B 575:2 572:+ 567:2 563:G 556:4 553:+ 548:2 544:R 537:3 528:, 513:R 505:, 498:2 494:B 487:3 484:+ 479:2 475:G 468:4 465:+ 460:2 456:R 449:2 441:{ 404:. 399:2 395:) 389:1 385:B 376:2 372:B 368:( 365:+ 360:2 356:) 350:1 346:G 337:2 333:G 329:( 326:+ 321:2 317:) 311:1 307:R 298:2 294:R 290:( 287:= 282:2 251:. 244:2 240:) 234:1 230:B 221:2 217:B 213:( 210:+ 205:2 201:) 195:1 191:G 182:2 178:G 174:( 171:+ 166:2 162:) 156:1 152:R 143:2 139:R 135:( 130:= 89:B 85:G 81:R 20:)

Index

Perceptual uniformity
color science
colors
metric
Euclidean distance
device-independent
color space
color space
variance
sRGB
HSV
HSL
§ Tolerance
Uniform color space
CAM02-UCS
WCG
HDR
ICTCP
taxicab distance

talk page
International Commission on Illumination
delta
Greek letter
Hermann von Helmholtz
Ewald Hering
CIELAB
the human eye is more sensitive to certain colors than others
just noticeable difference
CIELAB color space

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