I think it's important to consider the hair colour of the beholder as well.
I have an anecdotal theory that many people are attracted to each other in terms of differences rather than similarities.
For example, I'm caucasian. My eyes are green/grey, my skin is pale (not withstanding a tan), and my hair has steadily changed from snow white as a baby, to dark brown now (although I am in my advanced age of 33 getting flecks of silver through it now ...).
I have always found myself attracted to red heads, and girls with black hair (my wife, for example, is Korean-Japanese, so naturally black hair). These are two colours I shall never be naturally, so I've wondered if there may be a genetic mingling impulse there.
Although that said, my son - being half asian and half caucasian - is remarkably white in appearance. People basically say he is a spitting image of me, but with slight epicanthic folds and a slightly flatter/rounder nose. I have a daughter due any day now too ... I'll keep you posted.