Extend the life of your dye job—without worrying about grown-out roots—with one of these 29 shadow root hair color ideas.

With shadow roots, either your natural color is allowed to shine through from the beginning as part of the dye job (a la Selena Gomez), or roots of a different color are created with dye. Just ...

And as if the pastel-dipped ends weren't on-trend enough, Pugh's dark roots that contrast with her blond hair are another example of one of the season's hottest trends — shadow roots.