IF YOU’RE MEDIUM BROWN

Brown hair can still look beachy (See: Jennifer Aniston). But because yellowish hues can seem stripy on brunette strands, it’s important to keep the look subtle by opting for warmer tones. Marie Robinson suggests adding a full head of highlights that’s one shade lighter than your base. “This gives the illusion that your hair is a little brighter to start with,” she says. Follow it up with a scattering of honey blond ribbons around the face and on the ends. “It’s a natural, layered look that blends seamlessly.” This two-step approach also has dual-benefits: Eye-catching highlights amp up your color and add dimension, which makes your hair appear even thicker. Translation: Brunettes gone blond have more fun.

IF YOU’RE DARK

We’re going to be honest—raven-haired beauties, steer clear of peroxide. “When your hair is really dark, you go red or brassy, not blond,” says Redken Creative Consultant for Color Tracey Cunningham, of the Byron and Tracey Salon in Beverly Hills. But don’t feel gloomy, sultry hair can still look sun-drenched. Cunningham suggests using a café au lait hued gloss, which will brighten the hair and add a glassy sheen. Glosses will not alter your natural shade drastically, but they will have a lightening effect. Bonus: Most formulas condition and seal the hair shaft, which protects against the drying effects of the sun.