My natural color is a very ashy, dark blonde. So it is not light blonde (a la the dumb blonde stereotype), and it is not brunette. I don't think there are any stereotypes for it!
I do highlights and a bit of lightening allover, which gets my hair further into the blonde category. I have a very silly side, and I enjoy fashion, but I don't fit the stereotype other than that. I am about as far from "popular" or "superficial" as you can get :P
My favorite natural haircolor is red, which might make sense because I identify with being quirky