Color cones are literally on the X chromosome and women have two of those.Oh for god's sake, what a bunch of bullshit. Women evolved to distinguish different shades of pink my fat ass.
Do you know who has a million names for tiny distinctions in color? Middle and upper class people with too much time on their hands.
So as much as 50% of women can have four kinds of cone receptor while only 8% of men have this. Humans are sexually dimorphic and this is yet another way.