@AnonymousMan123,
Colour is a seminal issue in philosophy, psychology and physics For example, it was the consideration of Goethe's phenomenological colour theory in opposition to Newtons
Optiks, which led Wittgenstein to reject his own earlier acclaimed
Tractatus. The latest models for colour vision include total visual field, physiology and cultural conditioning , as well as the physics of the visual spectrum. For more, google Varela on 'color vision'.