“In visual perception a color is almost never seen as it really is — as it physically is. This fact makes color the most relative medium in art.”
First, it should be learned that one and the same color evokes innumerable readings. Instead of mechanically applying or merely implying laws and rules of color harmony, distinct color effects are produced-through recognition of the interaction of color-by making, for instance, two very different colors look alike, or nearly alike.”
– Josef Albers
Josef Albers mentions that we cannot see the color’s true self. That’s what make colors so special. When colors are placed with another color, the colors you see may slightly change lighter or darker, the humans eyes believe its a different color when its the same. Therefore no human eyes can see colors properly.