Silver Ash Blonde Highlights | It's time for a color change. Among the many hair color trends for 2018, hues with a little smoke are on the rise to the top. Traditional blondes and brunettes covered with a veil of gray are the ultimate cool-girl hair color now. These ash blonde hair colors are all over Instagram and Pinterest too. If that color sounds a little too out there for you, there are some subtle ash blonde trends that might surprise you too. Take a peek at a few of our favorites.