An All-Over Chestnut Brown—For low-commitment ladies looking for a high-impact change this season, opt for a bold single-process. For the fall, Greg recommends deep, warm chestnut brown—a universally flattering hue that channels the classiest of women (Jackie O and Audrey Hepburn, anyone?). Keeping your hair looking healthy and glossy is key to this timeless ladylike shade. Maintain the sheen with Ted Gibson Brazen Brown Shampoo and Conditioner.

Ted Gibson Brazen Brown Shampoo, $24.95, Brazen Brown Conditioner, $19.95, available at Beauty Bar.

Ashley Garcia Photo Photographed by Tracy Wang