I haven't done much work on this library in a long time, you should check out Colourful, It's a great library with some fantastic features: https://github.com/tompazourek/Colourful

What is ColorMine?

MIT Licensed .Net library that makes converting between color spaces and comparing colors easy.

Getting Started

ColorMine is available as a nuget package so you can install by searching for "ColorMine" in the "Manage Nuget Packages" menu, or run the following command in the Package Manager Console:

PM> Install-Package ColorMine

Color Conversions

You can convert between any supported color spaces via generic methods like so:

var myRgb = new Rgb(149, 13, 12)
var myCmy = myRgb.To<Cmy>();

var myXyz = new Xyz(myRgb);
var myLab = myXyz.To<Lab>();

var myYxy = new Yxy { Y1 = .1124, X = .22, Y2 = .14 };
var myHsl = myYxy.To<Hsl>();

Cmyk conversion also supports profiles

var myCmyk = myRgb
    .WithProfile("~/JapanWebCoated.icc")
    .To<Cmyk>();
var myHunterLab = myCmyk
    .WithProfile("~/JapanWebCoated.icc")
    .To<HunterLab>();

Online example at http://colormine.org/color-converter

Delta-E

Delta-E calculations take and compare colors in any of the supported formats.

CIE76

double deltaE = myRgb.Compare(myCmy,new Cie1976Comparison());

CMC l:C

double deltaE = myXyz.Compare(myLab,new CmcComparison(lightness: 2, chroma: 1));

CIE94

double deltaE = myYxy.Compare(myHsl,new Cie94(Cie94Comparison.Application.GraphicArts));

CIE2000

double deltaE = myHunterLab.Compare(myLuv, new CieDe2000());

Huge thanks to Jonathan Hofinger for correct implementation of CieDe2000 and to Gaurav Sharma for test data.

Note: Delta-e calculations are quasimetric, the result of comparing color a to b isn't always equal to comparing color b to a...but it will probably be pretty close!

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Currently Supported Color Spaces

• CMY
• CMYK
• HSL
• HSB
• HSV
• CIE L*AB
• Hunter LAB
• LCH
• LUV
• RGB
• XYZ
• YXY

Currently Supported Comparisons

• CIE76
• CMC l:c
• CIE94
• CIE2000