If you're going to be wearing something outragous (a moe green tux) you do need to talk to your date. I would seriously hurt my date if he had shown up in lime green (though thinking about it...It would have been cool.) Nevertheless...I think what you wear depends on your personality. If you're known for doing wacky things that it wont matter but if you're like...the shy reserved type...it'll be a big deal. One of the guys from my school wore a powder blue suit with a very bright canary yellow dress shirt and a pair of light brown oakleys. He looked like one of the mafia guys from Scarface (I think my date said Mr. Black...I forget). It looked cool...minus the canary yellow...though. Oh yeah...white patan leather shoes too.