Sunglasses are like makeup; you must consider skin, eye, lip and hair colors. For darker skin tones, Aqua and G15 lenses look fabulous. Try the lenses before you buy. Hold the lenses you like over your arm in the sunlight. See if your optician has another frame with lenses you like, try those frames on. See how the sun and ambient light reflect off (and over) your skin. If the lenses look good, then have your optician install that color in your preferred frame. Gradient and mirror lenses help further refine the look.