Any set of colors within a particular color system which are the most basic colors for that system, and from which all other colors can be produced, but which cannot be produced by combinations of other colors. In two particular systems, there are three primary colors. The additive color primaries, or the primary colors of light, are red, green, and blue. The subtractive color primaries, or the primary colors of pigments or colorants, are cyan, magenta, and yellow. All other colors—called secondary colors—are derived from combinations of these primaries