Let’s talk about color. To begin with, what we see as color are different wavelengths of light. Light in turn is part of the electromagnetic spectrum. What we see of the different wavelengths of light is referred to as the visible spectrum. White and black, while technically considered colors, are not part of the color spectrum. What we see as “white” is actually the combination of the different wavelengths of light. Black is an absence of white. (Both white and black also come into the picture as “value” or “brightness” which indicates how bright or dark a color is.)
There are two methods of combining colors.