It depends on the specific color wheel being used. In some color wheels, tertiary colors are usually a mix of one primary color and one adjacent secondary color. In that case, tertiary colors would include colors such as red-purple, blue-green, and yellow-orange. So on this type of color wheel, tertiary does not have a specific color. However, if you are referring to the traditional color wheel, tertiary colors are usually a mix of one primary color and one secondary color, which would exclude red, purple, blue, and violet.
