definition of secondary colors
View More. Definition: A secondary color is a color made by mixing two primary colors together: red and yellow to get orange, yellow and blue to get green, or red and blue to get purple. The secondary color depends on the proportion in which you mix the two primaries. For example, if you add more red than yellow, you get a reddish orange, and if you add more yellow than red, you get a yellowish orange. See also:  Color Theory Lesson: Secondary Colors.