Ororo Munro, AKA Storm of the Marvel Comics X-Men. Based, More or less, half on Halle Berry's wig, and half on my own theory on what Storm should look like. Ororo, as we know, was the daughter of a Caucasian photographer named... Something-or-other Munro and a white-haired African priestess, whose name also escapes me. Assuming her mother was full-blooded Negroid (white hair aside), This could give her any number of skin tones. I imagine her, however, as the Nubian Goddess she was mistaken for in her native Africa. Meaning, to me, having a very dark, sexy, brown skin tone. Based on a number of different X-Men media.