...or were you looking at the Woman in the Red Dress?

Researchers have discovered that the colour red enhances men's attraction towards women:

the women shown framed by or wearing red were rated significantly more attractive and sexually desirable by men than the exact same women shown with other colors. When wearing red, the woman was also more likely to score an invitation to the prom and to be treated to a more expensive outing.

Apparently this will have implications for dating and product design, but I think that they've already been taken on board in these contexts.