According to Refinery 29 and SheFinds, it is. They like to call it "ombre." That's a term usually reserved for garments, but the young and fashionable are always looking to set trends.
...we do indeed love a fresh 'do. So when we noticed the ombre dyed coiffure beginning to surface, we knew it would be a trend to tempt us. The subtle shift in color, from the palest light to the deepest dark, more than suits our love of contrasts.

Even Hollywood has taken notice of the color fad. Actress Drew Barrymore turned heads at the premiere of her lastest film when she showed up with this unexpected 'do. We have to admit that we were the first in line to question Drew sanity for beauty choice, but we've learned that perhaps she's simply a high fashion prophet. Thanks for helping us see the light, Drew.

For all interested parties, SheFinds has some tips on how to get the look.
For maximum shading and contrast, if you aren’t already, you’re going to need to go partly blond. The Clairol Xtreme FX Bleach-Out Kit has the tools that make it easy to lighten all or part of your head as you see fit. And then, to get the most fun out of this look, dye the ends of your hair with a semi-permanent color that will eventually fade to another shade. This way you’ll get more than one color combination from your two-toned strategy. We like the idea of starting off with Natural Instincts’ Suede Light Brown shade.
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