The Best Cool Tone Brown Hair Color Ideas. Web the best cool brown hair colors 1. If you switch up the tone — think cool vs.

Web if you're trying to take the plunge into darker territory, try a smoky brown hair color like shay mitchell's. From cool tones to warm tones and shades in between, we guarantee that you’ll fall head over heels in love with one of these brown tones: An ashy brown hair color can range from light to dark, so the level of darkness you choose to commit to is up to you.