This document discusses color theory and color schemes. It defines color as light reflected from an object to the eye. It describes color value as lightness and darkness, and how tints and shades are created by mixing colors with white and black. The color wheel is presented as arranging pure hues in a logical sequence. Primary, secondary, tertiary and neutral colors are defined. Warm colors are on the right side of the wheel and cool colors on the left. Color schemes including monochromatic, complementary, split complementary and analogous are also summarized.