Primary Secondary Tertiary Colors
Primary Colors: YELLOW, RED and BLUE. Colors that "cannot be obtained by mixing other hues, but one can produce all the other hues by mixing the primaries."
Secondary Colors: ORANGE, VIOLET and GREEN. Colors "made by mixing their adjacent primaries; for example, yellow mixed with blue makes green."
Tertiary Colors: "A mixture of primary and secondary hues: yellow-green, is a mixture of the primary yellow and the secondary green." Yellow-Green, Yellow-Orange, Red-Orange, Red-Violet, Blue-Violet, Blue-Green.