The document discusses the history and theory of color. It describes how Sir Isaac Newton invented the first color wheel in the 17th century by splitting white light into a spectrum. Johann Wolfgang Goethe further studied the psychological effects of different colors. The current form of color theory was developed by Johannes Itten, who taught at the Bauhaus school and modified the color wheel. The document also defines key color theory terminology like the additive and subtractive color systems, hue, saturation, brightness, and color harmonies.