I've heard that Red is more attractive in general but maybe I'm wrong.. Found this before: "Each subject tested four different wigs four times. In that crucial hour, overall, 127 men approached the women wearing a blond wig, 84 men approached the brown wigged lady, 82 went up to the black haired woman but only 29 approached the red haired lady."
What do I prefer right now? Blond if it's her natural hair color and Red if it's not.
Not exactly. I see girls mainly on their personality and some on their looks. Having different hair color can make you more attractive depending on the person. I like girls with pink or blue hair color it gives them more uniqueness so to say. So to answer your question, hair color I believe depending on the person makes women/girls more attractive.