We never really perceive what color really is, as it physically is. This fact makes color the most relative medium in art.
Josef AlbersAs basic rules of a language must be practiced continually, and therefore are never fixed, so exercises toward distinct color effects never are done or over. New and different cases will be discovered time and again.
Josef AlbersEvery perception of color is an illusion, we do not see colors as they really are. In our perception they alter one another.
Josef Albers