I know this sounds like stupid question but some guys like one color much better than the other.
Most Helpful Guy
I have always been very attracted to women's hair. It's the first thing I notice when I meet someone new. I have a preference for brunettes, but I've had quite a few blond girlfriends and even a couple of redheads. To be honest, I do not like drastic changes in color. Brunette to blond, or blond to brunette, is a little too extreme for me. And to answer your question, in my eyes, it would definitely affect the "sexiness" factor. Not every color (or hairstyle, for that matter) looks good on a woman.
I work with a woman who is forever messing with her hair. Color and style. I realize that women in general get board with their looks and want change, but my co-worker takes it to the extreme. After countless experiments, one day she came to work looking better than she had ever looked before. She had finally hit a home run with both the color and the style. She was bombarded with compliments from male and female co-workers, myself included. She was so happy, she was beaming. Despite all the words of praise, three weeks later she changed it all again, and looked terrible. I could not believe she did it or comprehend the reason why.1