(Note: For more, here's an in-depth guide on how to choose the right hair color for your skin tone ... while "Deep Blue Black" and "Black Sapphire," which are cool-toned, would be a beautiful ...

The Pantone color of the year is also the perfect summer hair color. “Mocha shades are another favorite for people who have ...

Closer to a burgundy color, this hair color truly quenches my thirst for a seasonal makeover and incorporates dark cherry red tones throughout. For a dimensional, all-over red look, this scarlet ...

You can also let sections of your original hair color peek through for a more cohesive and purposeful finish, like the blue-on-black mix seen here. Icy-blue hair to match those ~ocean eyes~?

Just in time for fall, Bieber has decided to step into the dark side — with her hair, that is. The 26-year-old showed off her newest hair color, a darker hue for the colder months ahead on her ...