This document provides an overview of color theory, including definitions of key color terms, descriptions of primary, secondary and tertiary colors, explanations of different color schemes, and discussions of color value, saturation, and temperature. It defines color as the byproduct of light spectrum perceived by the human eye and brain. It describes hue, tint, tone, shade, value, and saturation. It explains that primary colors cannot be mixed, secondary colors are made from two primary colors, and tertiary colors are made from a primary and secondary color. It also outlines several color schemes including monochromatic, analogous, complementary, and split complementary.