According to an article on WebMD, researchers at the University of Rochester conducted a study with students involving photos of women on backgrounds of red and of other colors. The men found the women in the red-background photos to be more attractive and appealing than women with photos on other colored backgrounds. Female students who studied the photos showed no such bias.
So, that age-old custom that links red with romance seems to have a lot of merit! Gals: If you'd like to wow your guy, then surround yourself in red! (Maybe even going so far as to fill your bedroom with red -- walls, bed linens, etc!). And guys, you can boost your own romance potential by giving your sweetie red presents -- a sexy teddy, a tube of lipstick, red high heels, a bouquet of red roses: You get the idea!