Unicorn Hair Color: How to Get the Rainbow Look
- , by Jessica Miller
- 19 min reading time
Everything you need to know about unicorn hair color: how to achieve it, best color combinations, pastel vs neon, maintenance tips, cost, and celebrity inspiration.
So you want unicorn hair. Not the cartoon version with perfect pastel stripes that never fade. The real thing. The kind where you walk into a room and someone whispers "her hair looks like a sunset had a baby with a rainbow." That kind.
Unicorn hair color has been one of the biggest hair trends for years now, and it's not slowing down. It's a multicolor technique that blends pastel or vivid shades through your hair to create that dreamy, magical effect. Katy Perry did it. Kesha did it. Demi Lovato did it. Half of Instagram did it. And here's the thing: you can absolutely do it too. But there are some things you should know first, because this look requires commitment, planning, and (depending on your starting point) a lot of patience.
This is everything you need to know about getting, maintaining, and (if the time comes) removing unicorn hair color. Whether you're going full rainbow or just dipping your toes into pastel territory.
What Exactly Is Unicorn Hair Color?
Unicorn hair color is a multicolor hair technique that blends three or more fantasy shades together throughout the hair. Think soft lavenders melting into baby pinks, then shifting into mint greens and powder blues. The effect looks like something out of a fairy tale, which is precisely the point.
The term became mainstream around 2016 when colorists started posting these transformations on social media. But the concept isn't new. People have been experimenting with multicolor hair since punk culture in the 1970s. What changed was the approach. Instead of harsh blocks of neon, unicorn hair uses blending techniques borrowed from balayage and ombre to create smooth, seamless transitions between colors.
There's no single "correct" unicorn hair look. Some people go full rainbow with six or seven colors. Others pick two or three shades from the same color family for something more subtle. And some go bold with neons instead of pastels. All of it counts as unicorn hair, as long as it's multicolor and gives off that magical, otherworldly vibe.
The look connects to a bigger cultural moment, too. Unicorns represent individuality, magic, and refusing to be ordinary. If you're curious about what unicorns symbolize and why they've become such a powerful icon, our deep dive into unicorn meaning and symbolism covers the whole story.
How to Get Unicorn Hair Color
Getting unicorn hair isn't a one-step thing. Not even close. It requires preparation, and depending on your natural hair color, it can take multiple sessions.
Step 1: Lightening Your Hair
Here's the part nobody loves hearing. For pastel unicorn colors to show up properly, your hair needs to be very light. We're talking level 9 or 10 blonde. If you have naturally dark hair (more on that below), this means bleaching, and bleaching is not something to rush.
A professional colorist will use a bleach and developer combination, leaving it on just long enough to lift the pigment without destroying the hair's structural integrity. For very dark hair, this might require two or three sessions spaced a few weeks apart. Trying to go from jet black to platinum in a single sitting is how hair breaks off in the shower. Don't do it.
If your hair is already blonde or light brown, you're starting from a much better position. You might only need one lightening session, or your colorist might be able to skip it entirely if the tones are light enough.
Step 2: Choosing Your Colors
This is the fun part. Most unicorn hair looks use between three and six colors. The classic combination is pink, purple, and blue, but you can go literally anywhere with it. Some popular palettes include:
- Pastel rainbow: soft pink, lavender, baby blue, mint green, pale yellow
- Sunset unicorn: coral, peach, golden pink, soft orange
- Ocean unicorn: teal, aqua, periwinkle, seafoam
- Galaxy unicorn: deep purple, midnight blue, magenta with silver highlights
- Cotton candy: bubblegum pink and baby blue (just two colors, but it works)
Pick your favorite
The key is making sure your chosen colors have enough contrast to read as distinct shades, but not so much contrast that the transitions look harsh. A skilled colorist will know how to blend neighboring shades on the color wheel for seamless results.
Step 3: Application
There are several application methods, and which one your colorist uses depends on the look you want:
Balayage-style: Colors are painted on freehand, creating a natural, flowing effect. This is the most popular method for unicorn hair because it produces those gorgeous, blended transitions.
Foil sections: Hair is divided into thin sections, with each section getting a different color. This creates more defined color blocks with less blending between them.
Peekaboo placement: Colors are hidden underneath a natural-looking top layer. You only see the unicorn colors when the hair moves, which is perfect if you need to keep things subtle for work.
Dip dye: Only the ends get colored. Lower commitment, lower maintenance, and you can cut off the colored section if you change your mind.
Pastel vs Neon Unicorn Hair: Which Should You Choose?
This is one of the first decisions you'll face, and it affects everything from maintenance to how dramatic the result looks.
Pastel unicorn hair uses muted, soft tones. Think the colors of marshmallows or cotton candy. It's dreamy, ethereal, and tends to look more "wearable" in everyday life. The downside? Pastels are the first to fade. Because the color molecules are less concentrated, they wash out faster, especially in the first week or two. You'll need color-depositing conditioners and cold water washes to keep pastels looking fresh.
Neon unicorn hair uses saturated, vivid shades. Electric blue, hot pink, acid green. It's bold, impossible to ignore, and lasts significantly longer than pastels because there's more pigment deposited in the hair. Neons do fade eventually, but they tend to fade into softer versions of themselves rather than disappearing entirely.
There's also a middle ground: starting with vivid shades and letting them naturally fade into pastels over a few weeks. Some people actually prefer their unicorn hair after it's faded a bit, because the softer tones feel more organic.
Can You Do Unicorn Hair on Dark Hair?
Yes. But it takes more work and more patience.
Dark hair (brown, black, deep auburn) contains a lot of natural pigment that needs to be removed before fantasy colors can show up. This means bleaching, and for very dark hair, it means multiple bleaching sessions. Trying to shortcut this process is the number one cause of unicorn hair disasters.
Here's a realistic timeline for going from dark brown or black to unicorn hair:
- Session 1: First bleach application. Hair lifts to orange or gold. Stop here and condition. Don't panic about the color.
- Session 2 (2-3 weeks later): Second bleach application. Hair lifts to yellow or pale gold.
- Session 3 (2-3 weeks later): Toning and color application. Hair is finally light enough for pastels.
That's potentially six weeks of waiting before you get the final result. It's worth it. Rushing this process damages the hair's cuticle, making it porous and unable to hold color. Ironic, right? The faster you try to get to unicorn hair, the worse the unicorn hair will look.
Alternatives for dark hair that skip the bleaching: try a vivid overlay. Deep jewel tones (dark purple, midnight blue, forest green) can sometimes show up on dark hair without full bleaching, especially in direct sunlight. The effect is more subtle, but it's still magical.
Celebrity Unicorn Hair That Started It All
Unicorn hair didn't become a mainstream trend by accident. It had some very high-profile ambassadors.
Katy Perry was one of the earliest celebrities to fully commit to rainbow hair, rotating through cotton candy pink, electric blue, and full rainbow looks during the 2010s. She didn't just wear the colors. She built entire visual aesthetics around them, making multicolor hair feel like a deliberate artistic choice rather than a rebellious experiment.
Kesha embraced rainbow hair as part of her glitter-and-freedom brand identity. Her version leaned more neon and chaotic, often incorporating glitter extensions and metallic streaks alongside the colors. It felt raw and authentic rather than perfectly curated.
Other celebrities who've worn notable unicorn hair include Demi Lovato (who went through a stunning pink-to-purple phase), Halsey (lavender to blue transitions), and Cardi B (who once wore a full rainbow wig that broke the internet for approximately 48 hours).
For more inspiration from celebrities who've rocked magical hairstyles, check out our roundup of celebrities with stunning unicorn hairstyles.
How Long Does Unicorn Hair Color Last?
This is the question everyone asks, and the honest answer is: it depends on a lot of factors.
Semi-permanent dyes (most common for unicorn hair): 4 to 8 weeks before significant fading. Pastel shades fade faster (sometimes noticeably after just 3-4 washes). Vivid shades hold longer.
Factors that speed up fading:
- Hot water (opens the cuticle, releases pigment)
- Frequent washing (every wash removes some color)
- Sulfate shampoos (strip color aggressively)
- Sun exposure (UV breaks down color molecules)
- Swimming (chlorine and salt water are color killers)
- Heat styling without protection
Factors that slow fading:
- Cold or lukewarm water for washing
- Color-safe, sulfate-free shampoo
- Color-depositing conditioners (these add small amounts of pigment back with each use)
- Washing less frequently (every 2-3 days instead of daily)
- UV protection spray when spending time outdoors
- Silk or satin pillowcase (less friction than cotton)
Maintaining Your Unicorn Hair
Getting unicorn hair is only half the battle. Keeping it looking good requires adjusting your entire hair routine.
First: invest in a good sulfate-free shampoo and conditioner specifically designed for color-treated hair. Regular shampoo with sulfates will strip your colors faster than anything else. This single switch makes more difference than any other maintenance tip.
Second: wash your hair less. Seriously. If you're currently a daily washer, try moving to every other day, then every third day. Dry shampoo exists for a reason, and your unicorn colors will thank you. Each wash is an opportunity for pigment to escape.
Third: use color-depositing conditioners or masks once a week. These products contain small amounts of pigment that refresh your color between salon visits. You can find them in most fantasy shades now. Some people mix custom shades by blending two colors together.
Start your collection here
Fourth: protect your hair from heat. If you use a flat iron or curling wand, always apply a heat protectant first. Heat opens the cuticle, which lets color molecules escape. Keep temperatures below 350 degrees Fahrenheit when possible.
And while you're perfecting your unicorn look from head to toe, our unicorn headbands make a pretty perfect accessory. Just saying.
DIY Unicorn Hair: Temporary Options
Not ready for the full commitment? There are several ways to try unicorn hair without touching bleach or semi-permanent dye.
Hair chalk: These waxy sticks deposit color on the surface of the hair without penetrating the cuticle. They wash out completely in one shampoo. The color isn't as vibrant as dye, and it can transfer onto clothing and pillowcases, but it's zero-commitment.
Temporary color sprays: Spray-on color that washes out in one wash. Great for events, Halloween, or just testing which colors you like before going permanent. The coverage can be uneven, so practice before any important occasions.
Clip-in extensions: Pre-colored hair extensions that you clip into your natural hair. You get the unicorn effect without changing your own hair at all. They come in every color imaginable and can be reused dozens of times.
Color-depositing conditioners: These leave a subtle tint that builds up over a few applications and fades gradually. They work best on light or blonde hair. On dark hair, the effect is minimal.
Wigs: A full unicorn wig gives you the complete look instantly, and you take it off when you get home. Synthetic wigs in rainbow colors are surprisingly affordable, and they've gotten much more natural-looking in recent years.
Temporary options are also great for kids who want unicorn hair. Parents can give their children the magical rainbow look for a birthday party or special event without any permanent changes or damage to developing hair.
The Best Color Combinations for Unicorn Hair
After looking at thousands of unicorn hair transformations (occupational hazard), these are the color combinations that consistently look the best:
Classic Rainbow: Red, orange, yellow, green, blue, purple. The full spectrum. It's dramatic, it's iconic, and it turns heads everywhere you go. Works best on long hair where each color has room to breathe.
Pastel Dream: Lavender, baby pink, powder blue. Three colors from the cool side of the spectrum that melt into each other beautifully. This is the most popular unicorn hair combination, and for good reason. It's stunning without being overwhelming.
Rose Gold to Violet: Starting with warm rose gold at the roots, transitioning through mauve, and ending in deep violet at the tips. This one looks sophisticated and almost natural in certain lighting.
Mermaid Unicorn: Teal, turquoise, seafoam green, with touches of purple. Technically more mermaid than unicorn, but the line between the two is blurry and nobody's checking. If you're into both unicorns and mermaids, our article on rainbow unicorns dives into the colorful side of unicorn culture.
Monochrome Gradient: Pick one color family and go from dark to light. Deep purple at the roots fading to pale lilac at the tips. Dark teal fading to mint. It reads as unicorn hair because of the fantasy color, but it's more refined than a full rainbow.
Salon vs DIY: Cost and What to Expect
Real talk about money, because unicorn hair isn't cheap when done professionally. And there are real risks to doing it yourself.
Salon cost: Expect to pay between $200 and $500 for a full unicorn hair transformation, depending on your location, your hair length, and how many sessions you need. Some high-end colorists in major cities charge $800 or more. This typically includes lightening, toning, and the color application itself.
Maintenance visits (every 6-8 weeks) run $100 to $250 for color refreshes.
DIY cost: Box dye and developer cost between $30 and $80 for multiple colors. But here's the catch: if you mess up the bleaching step, correcting it at a salon can cost more than just going to a salon in the first place. We've heard horror stories of $600 correction sessions after a DIY bleach job went sideways.
Our honest recommendation: if you need bleaching, go to a professional. If your hair is already light enough to skip the bleaching step, DIY with semi-permanent fantasy dye is totally doable. Brands like Arctic Fox, Manic Panic, and Lime Crime have user-friendly formulas that are hard to mess up. They're also vegan and conditioning, so they actually improve the feel of your hair while adding color.
How to Remove Unicorn Hair Dye
Changed your mind? Need to go back to a natural color for work or school? Here's the reality of removing unicorn hair.
Semi-permanent dyes will fade on their own over 4-8 weeks. You can speed this up by washing with a clarifying shampoo (the opposite of what you'd do to maintain the color) and using warm water. Vitamin C treatments (crushed vitamin C tablets mixed with shampoo) can help break down stubborn pigment.
Stubborn shades like blue and green tend to hang on the longest. Blue pigment molecules are smaller and penetrate deeper into the hair shaft, which is why teal-based colors can linger for months as a faded, slightly greenish tint. If this happens, a color remover product can help, but it's not gentle on the hair.
Going back to natural color: Once the fantasy colors have faded or been removed, a colorist can apply a demi-permanent dye in your natural shade (or something close to it). This fills in the lightened hair and gives you a uniform color. It won't be exactly the same as your virgin hair, but it'll look natural.
The nuclear option: If all else fails and you want to start completely fresh, you can cut off the colored sections. For some people, this is actually liberating. Big chop energy.
Why Unicorn Hair Color Keeps Trending
Hair trends come and go. Ombre peaked. Balayage plateaued. But unicorn hair keeps cycling back. Why?
Part of it is the visual impact. Nothing photographs like rainbow hair. In a social media culture where standing out matters, unicorn hair delivers instant visibility. It's wearable art.
But it's more than that. Unicorn hair is a statement about identity. Choosing to walk around with pink, purple, and blue hair is choosing to be visible. To be different. To opt out of blending in entirely. There's something genuinely brave about it, especially in environments where unconventional hair colors still raise eyebrows.
And then there's the joy factor. Every single person we've talked to who's done unicorn hair says the same thing: it made them happier. Looking in the mirror and seeing something magical staring back has a real psychological effect. It's hard to feel ordinary when your hair looks like it belongs in a fantasy novel.
If you're going all in on the unicorn aesthetic, complement that gorgeous hair with a cozy unicorn hoodie to complete the look. Because why stop at the hair?
