The Best Cool Dark Ash Brown Hair Color 2023. Dark ash brown hair with golden highlights. This greenish undertone will appear something closest to grayish tones.

Shadow roots + light ash brown hair color combo. Web ash brown hair usually suits those with cool skin undertones and the best time to try it out is the start of spring, as the warm rays from the sun will make the silver tones appear far more striking and make them pop. Light ash brown hair color highlights on dark hair.