Brown hair is anything but boring. Whether you're going over to the dark side for the first time or you're a natural brunette who wants to enhance your color, there are myriad shade possibilities.

Choosing to go dark is the first step, but finding the right shade for your complexion is the other half of the equation. That's why we turned to expert hairstylist Nick Arrojo to create a complete guide on which brunette shades work best for every skin tone.

Once you're enjoying your new brown shade, Arrojo stressed the importance of preserving it by using shampoo and conditioner tailored for colored hair. You'll also want to treat strands with a weekly treatment (such as the Arrojo Whipped Treatment) to maintain the hair's vibrancy.

Meet the expert

Now, who said blondes have more fun? Keep scrolling to find the best brunette shade to complement your skin tone, courtesy of our favorite celebs.

Fair with Cool Undertones

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Those with fair skin and cool skin tones have a blueish undertone to their skin and often burn easily when out in the sun. Look at your veins in natural light. If they look blue or purple, then you have cool undertones. Dakota Johnson's warm chestnut shade with red and golden undertones will brighten up fair complexions that lean to the cool side.

Fair with Warm Undertones

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Those with warm undertones have a more yellow or green undertone. If your veins have a green tint instead of blue, you have a warm undertone. The best way to complement a fair complexion with warm undertones? Look no further than Katie Holmes with her deep caramel color. 

"Keep the caramel cool for a nice contrast," said Arrojo.

Medium with Cool Undertones

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If you don't burn easily when out in the sun but have a blue undertone to your skin, then you fall into this category. Arrojo said that a neutral brunette shade, like Bella Hadid's charcoal-toned brown, pairs well with a medium complexion with cool undertones.

Medium with Warm Undertones

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Those with a medium skin tone with warm undertones, such as Emily Ratajkowski or Beyoncé, will find that gold jewelry looks best compared to silver. If you have a medium complexion that leans on the warm side, Arrojo said that a light chocolate brown shade, seen here on Ratajkowski, is the perfect balance for your skin tone.

Olive

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Olive skin tones are considered warm or even neutral. Your veins may be somewhere in between blue and green. For olive complexions like Selena Gomez, Arrojo suggested opting for a dark chocolate brown that will create a striking contrast with your skin tone.

Dark with Cool Undertones

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Arrojo said that multidimensional highlights, like Viola Davis's ribbons of color, add softness and warmth to dark skin tones with cool undertones. Caramel or warmer red highlights are a great choice for this skin tone.

Dark with Warm Undertones

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To enhance the natural warmth of this skin tone, Arrojo recommended a coppery brown shade, as seen on Yvonne Orji. This brunette shade gives your skin the ultimate "glow from within" look.

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