Color perception The way humans perceive colors is not universal. Rather, we are capable of comparing and contrasting colors according to individually understood criteria of similarity, sameness, or distinctness. Moreover, even the choice of specific colors in the spectrum is an individual feature. It is known that colors have a structure based on three primary colors and their combinations. After all, it is an interesting observation that only the concepts of lightness (white) and darkness (black) are basically universal, and also, if there is one, red color including reds, oranges, as well as yellows, pinks and purples up to filberts.