Light (Grey, Blue, or Green Tones)
Hughes recommends wearing something with a red or warm undertone, like NYX Professional Makeup Jumbo Eye Pencil in Rust ($4.50; ulta.com). Hughes says you can wear it just as you would your normal eyeliner, or layer it on top of a brown to sheer it out. Because red is across from blue and green on the color wheel, a subtle hint of it helps the other pop.
Since hazel is a hybrid of light and dark, Hughes says you can go any direction with your color choice, but notes that a green or a bronze hue is especially flattering to draw out the gold tones. The By Terry Stylo Blackstar No. 7 in Bronze Green ($30; dermstore.com) covers both bases, is super creamy, and long-lasting (it's waterproof!).
Dark (Brown or Black)
If your eyes are a deep brown or black shade, Hughes recommends a jewel tone, like royal blue or aubergine. BareMinerals Round the Clock Intense Cream-Glide Eyeliner in Eggplant ($17; ulta.com) does the trick. If you want to get creative, Hughes suggests trying a single dot of color on the inner or outer corner of your eye, or underneath your lower lashes. Pair it with your usually black eyeliner for just a pop of color that’s understated, but modern.