Wella's new colors are foolproof for any level of rainbow-hair fans. You can grab all of them at Sally Beauty starting in March for just $6 each. Yes, they're really only $6 per color.

For centuries, hair dye has been pivotal in helping people portray a certain image – to either fit in with the beauty standards of the day or to dramatically subvert them.

Rainbow hair is a fun look, but it does require a lot of commitment. Every part of the process, from dying to maintenance, will take time and effort to achieve. Here's what you should know.

Since we can always use some summer hair color inspiration, we’ve rounded up 11 different times Monica has rocked hair color flawlessly. Keep scrolling to get your rainbow fix. 01 ...

For centuries, hair dye has been pivotal in helping people portray a certain image – to either fit in with the beauty standards of the day or to dramatically subvert them.