Some links about colors etc.:
- A Standard Default Color Space for the Internet - sRGB
- Color FAQ - Frequently Asked Questions Color
- Bruce Linkdbloom's site about colors (incl. formulas for conversions between color spaces)
- From RGB to Lab* color space
- Color Map Advice for Scientific Visualization
- How to Convert an RGB Image to Grayscale
- RGB / sRGB (s...standard)
- HSV
- CIE-L*a*b*
- CIE-XYZ
With conversions RGB <-> HSV and RGB <-> CIE-L*a*b* and RGB <-> CIE-XYZ
There are extensions to convert a color to a grayscale color by using a mode given by GrayScaleMode.