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At this point, rainbow hair color is more than just a trend; it's grown into a category of its own. Now it's just as common to see someone rocking pastel or neon hair as it is blond or brown. It's ...

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, ...