To construct a Color data structure, you must specify a color space. The coordinates of each color space are floats between 0 and 1 unless noted. The known color spaces are:

RGB - Red Green Blue - hardware dependent additive color space

Gs - Grayscale - a perceptually uniform monochrome space

CMYK - Cyan Magenta Yellow Key - hardware dependent subtractive color space

HSV - Hue Saturation Value - hardware dependent cylindrical color space

HSL - Hue Saturation Lightness - hardware dependent cylindrical color space

XYZ - CIE 1931 color space modeling retinal stimulus response

xyY - CIE 1931 color space combining chromaticity (x,y) with retinal stimulus

Lab - Lightness a-chroma b-chroma -CIE 1976 color space with Euclidean distance modeling perceptual distance, a is a green to magenta coordinate, while b is a blue to yellow coordinate

Luv - Lightness u-chroma v-chroma - alternate CIE 1976 color space with Euclidean distance modeling perceptual distance, u is a green to magenta coordinate, while v is a blue to yellow coordinate

LCHab - Lightness Chroma Hue - CIE 1976 cylindrical color system with a and b rewritten in polar coordinates with radius C (chroma) and angle H (hue)

LCHuv - Lightness Chroma Hue - CIE 1976 cylindrical color system with u and v rewritten in polar coordinates with radius C (chroma) and angle H (hue)

JCh - Lightness Chroma Hue - CIE CAM02 cylindrical color system

Jab - Lightness a-chroma b-chroma - CIE CAM02 JCh converted to rectangular coordinates

YUV - Lightness u-chroma v-chroma - YUV color the BT.470 version of the color space used in SDTV PAL video encoding, implemented via ImageTools:-RGBtoYUV. Y is luminance and U and V are red and blue chrominance respectively.

$\mathrm{with}\left(\mathrm{ColorTools}\right)\:$

$\mathrm{spaces}≔\left[''RGB''\,''HSV''\,''HSL''\,''CMY''\,''CMYK''\,''XYZ''\,''LMS''\,''xyY''\,''Lab''\,''Luv''\,''LCHab''\,''LCHuv''\,''HCL''\,''Jab''\,''JCh''\,''YUV''\,''Gs''\right]$

$\mathrm{spaces}≔\left[''RGB''\,''HSV''\,''HSL''\,''CMY''\,''CMYK''\,''XYZ''\,''LMS''\,''xyY''\,''Lab''\,''Luv''\,''LCHab''\,''LCHuv''\,''HCL''\,''Jab''\,''JCh''\,''YUV''\,''Gs''\right]$

$C≔\mathrm{Color}\left(''Niagara\; Red''\right)$

$C≔⟨RGB\; :\; 0.471\; 0\; 0.0549⟩$

$\mathrm{DocumentTools}:-\mathrm{Tabulate}\left(\left[\left[''Space''\,''Coordinates''\right]\,\mathrm{seq}\left(\left[s\,\mathrm{Array}\left(\mathrm{Convert}\left(C\,s\right)\right)\right]\,s\mathbf{in}\mathrm{spaces}\right)\right]\,'\mathrm{weights}'=\left[1\,10\right]\right)\:$