Whether you're incorporating blue highlights or a touch of pastel pink like January Jones and Heidi Klum, wild hair hues give your style a fun, edgy twist, so you can get just as creative with your makeup. Just be sure not to get too matchy-matchy. "My personal favorite is to clash the pink with a red lipstick," says Nadine. "It's so much fun!" If vivid colors intimidate you, balance the brightness with neutral tones. "Try to go for a natural effect and let your hair color do the talking," Lee says. "A really surprising color to try is Chanel's Rouge Coco in Chic ($33; chanel.com). It's almost taupe, but when it blends with your natural lip color, it forms the perfect nude that looks incredible against most skin tones."