Maybe this is something of a values dissonance over here in Mexico, but when I was still studying in college and girls (even my female teachers) were in same or similar clothes (mostly same color) was like "Yaaay~!" and if only one was different colored (i.e. all blue, one purple) they'd go all "Aww, combo got broken..." and forget about it right away.
There was this one time due a huge coincidence we all went in black clothes, it was hilarious.