This document discusses color theory and relationships. It begins by defining primary, secondary, and tertiary colors. Primary colors cannot be made from any other colors and include red, yellow, and blue. Secondary colors are made by mixing two primary colors, and tertiary colors mix a primary and secondary. Complementary colors are directly across from each other on the color wheel and have high contrast. The document then discusses color relationships using a color wheel or triangle model and defines hue, tint, shade and tone. It provides examples of complementary colors used by artists like Van Gogh and Monet. Finally, it discusses the Fauves artistic movement in the early 20th century that embraced vibrant color expression over realistic representation.