Popsugar Beauty Celebrity Hair Celebrity Hair Color Trends 2018 25 Celeb-Inspired Hues If You're Looking to Switch Up Your Hair Color This Summer July 25, 2018 by Rebecca Carhart View On One Page Photo 24 of 25 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 24 Olivia Palermo We love the cool tones in Olivia Palermo's ash brown hair. Previous Next Start Slideshow Celebrity HairSummerCelebrity BeautyHairHair TrendsHair Color