RGB (Additive)
CMY (Subtractive)
These Color Play pages show color interactions, or how colors affect each other. Paint, light, and colored glass all react differently.
Colored light uses “additive” color, where the colors are added together. This is used for computers and televisions. It is based on the colors Red, Green, and Blue; or RGB. All colors mixed together will give white.
Painting and printing use “subtractive” color. It is based on the colors Cyan, Magenta, and Yellow; or CMY. All colors mixed together should be black. These don't exactly make black in the real world, so often CMYK is used—with “K” for black, since “B” is used for Blue.