Brown Hair Color Underneath. You can also try mixing light purple and dark purple with light blue, lavender, and violet. Purple underlayer hair is a good idea for women who have a lot of natural brown tones in their hair.

Web underneath hair colors, also known as color blocking or peekaboo hair, refer to the technique of dying only the underlayer of the hair at varying depths so that it. The purple underlayer color will just add more to your black or brown hair dye. You can also try mixing light purple and dark purple with light blue, lavender, and violet.