Valentine’s Day is the perfect opportunity to add a splash of red to your look. At the “Green Hornet 3-D” premiere in Los Angeles last month, Cameron Diaz wore a fire-engine-red Azzaro shift, but dialed it down with nude heels and simple jewelry. The dress was enough to get our attention; anything else would have been overkill. On the flip side, Amy Adams’ nude J. Mendel dress at the “Fighter” premiere was flowy and romantic. Her red Brian Atwood heels and foil-heart lipstick showed that she meant business. In short, dressing for Cupid’s day is all about salty and sweet . . . just how the guys like it.

PHOTOS: HOW TO WEAR RED ON VALENTINE’S DAY