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We’ve always had a soft spot forgrunge beauty.

And this fall, we’re bringing back all of those moody vibes thanks to the blue-black hair trend.

Meet the Experts

What Is Blue-Black Hair?

A rear view of blue black hair with subtle tones of gray, hanging in loose waves

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“Blue-black hair is the darkest color that one can go for,” says Rez.

“It’s black in color and has a blue tone to itthere are no red or warmundertones.”

Blue-black is similar tomidnight-black hairbut with far more variety.

Blue black hair buzz cut

@stepthebarber/ Instagram

As far as blue-black colors go, the blue undertones orlowlightscan be turned up or down as preferred.

Blue-Black Buzz

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This short buzz is fresh, especially in a vivid blue-black hue.

For a look this cool, though, we’d say it’s totally worth it, though.

Gal Gadot with deep black hair.

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To maintain that reflective, deep tone, he suggests going to the salon for aglossabout every six weeks.

Blue Braids

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Blue-black hair shines just as bright for protective styles.

Add in some blue accessories as seen here in nail and bracelet form to up the ante.

The actor Cami Mendes with her hand in her hair, a deep shade of blue black

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Blue-lights

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Traditional black-blue shades don’t always feature actual blue.

Instead, they tend to have a tinge of blue when light reflects off the hair.

But that doesn’t mean youcan’tadd sometrue-bluetouches.

blue black box braids

@hairby_bri/ Instagram

We’re big fans of this highlight-style take on the look.

“This is different from traditional black hair, which does not have any undertone.”

He also notes that the hue is particularly striking on softer, pale skin tones since it creates contrast.

shiny blue black hair

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Blue Ombre

Somewhere between subtle and bold lies this chic interpretation of blue-black hair.

“To maintain the color for as long as possible, I’d recommend using the properhair care products.

@keymeekay/ Instagram

Blue-black hair with more blue tends to read as navy blue.

Hoyeon with old Hollywood wavy hair in a blue-black tone.

@jennychohair/Instagram

This inky color packs both vibrance and shine.

“If you are not sure you want to commit long term, gloss or do ademi-permanentblue-black.

That’s easier to remove.”

Black hair with blue ombre highlights

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As far as styling, anything goes with blue-black hair.

Icy Blue

For this shade, the colorist weaved icier shades of blue into true black hair.

This technique creates more contrast than traditional blue-black tones without reading astoobrightly colored.

blue black bob on megan the stallion

@theestallion/ Instagram

Routine hair glosses are key to keep this midnight hue looking its best.

blue black curly hair

@curlsbysaminicole/ Instagram

navy blue hair

@keymeekay/ Instagram

blue black hair on natural curly texture

@jordannacobella/ Instagram

Greta Lee with a blue-black side-swept pixie cut.

@jennychohair/Instagram

blue black hair

*@jojo___/ Instagram*

Almost-gray blue-black hair in loose waves, viewed from a slight angle

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blue black waves

@vanessarosehair/ Instagram

black hair with streaks of blue

@_cosmicglamhair/ Instagram