The color purple is created by combining various amounts of two primary colors: red and blue. The amount of each primary color used affects the overall look of the end result. For example, adding more blue creates a deeper, darker color, while using more red results in a violet color.
Purple is considered a secondary color since it is made by mixing two primary colors, which are colors that can't be made by mixing any other colors. There are three primary colors: red, blue and yellow. If combined with another color, purple can be used to create a tertiary color.