They have hair color for men, the same kind for women, like clairol with a picture of a man on the box. They come in a wide range of colors, just not as many as for women. but they do make it, because over the past few years, cosmetics for men, and the such have become the rage and already become a demand.
My hair is a mix of brown and red, and my facial hair is an even more mix of colors, not like a rainbow though, not that many colors.