Plus, find a curated guide of blue-black looks for plenty of inspo. "It's a cool color with the depth or darkness of the hair being black and the reflection or tone being a cool blue," stylist ...

Taylor Swift's blended blonde lends her hair an extra bit of dimension. For an added pop of color, she's also been known to dye her ends pink or blue. Golden blondes like Gigi Hadid are a solid ...