Any color as long as its RED

http://www.cnn.com/2008/HEALTH/10/28/red.sex.appeal/index.html

No arguments there...

Men find women sexier if they're sporting a crimson hue rather than, say, blue or green.
But this might not help Sarah Palin a lot!

Could it be Roses, Hearts and Valentines and Lingerie and things like that which are usually shown in Red
and are all related to Romance in different ways. Red is more than a color. It also means Danger, Fire, Hot, Blood and also believed to be provocative!

Provocative, probably for all those reasons.