The Color of Nude Undies

When I was growing up flesh colored crayons didn't match anyone's flesh so they changed the name to peach. In my youth, nude colored nylon hose also didn't match everyone's legs either.  Now a London based company, Nubian Skin, is making a splash with their line of undies for the woman of color.  Why did it take so long to discover that the color of nude isn't the same for all women? I must say, that this is a good start.