Rihanna's unnatural red hair color is difficult for even the boldest woman to carry off. But we can learn something from Rihanna ... That it's OK to clash or contrast your red hair with your lips. Her purple lipstick is as attention-grabbing as her red mop because it's unexpected and highly saturated. A Sara Rue redhead could also wear a hot pink lipstick. The key is to remember that both purple and pink contain red, so they're from the same family of colors. Finish this look with mascara and bronzer to contour the cheeks. And remember, there should be only one element of contrast on the face at a time.