On Vision and Colors tried to demonstrate physiologically that color is "specially modified activity of the retina." The initial basis for Schopenhauer's color theory comes from Goethe's chapter on physiological colors, which discusses three principal pairs of contrasting colors: red/green, orange/blue, and yellow/violet. This is in contrast to the customary emphasis on Newton's seven colors of the Newtonian spectrum. In accordance with Aristotle, Schopenhauer considered that colors arise by the mixture of shadowy, cloudy darkness with light. With white and black at each extreme of the scale, colors are arranged in a series according to the mathematical ratio between the proportions of light and
Colors (motorcycling) a club logo, the name of the club and other chapter identification. In most motorcycle clubs the patch representing membership in the organization is often referred to as "the club colors" or simply "the colors". Each club has rules on how the colors are treated and when it is proper to wear them. Well structured clubs have bylaws dictating the behavior of its members and thus the proper use of their colors. Tattoos may also come under the category of club colors. Colors (motorcycling) Colors are the insignia, or "patches", worn by motorcycle club members on cut-off vests to identify