Pro tip: If you’re hesitant to go for a full-blue moment, match your shade of blue to your skin’s undertone, says Hernandez. “Cool and neutral skin tones can wear most cool-toned blue hair colors, ...

Maggie Whitten has rocked mermaid blue hair for almost a decade. But whenever the self-proclaimed influencer wants to give her dyed locks an extra jolt, she turns to the electrifying hair extensions ...