24 Mermaid Hairstyles for Long Hair with Pastel Highlights

Dreaming of ocean-inspired locks? Long hair is the perfect canvas for mermaid magic. Pastel highlights add a touch of fantasy to any look.

Explore these stunning styles today. Transform your hair into a mystical masterpiece. These 24 ideas will inspire your next salon visit.

Find the perfect blend of color and texture. From soft waves to intricate braids, the possibilities are endless. Let your inner mermaid shine through your hair.

1. Classic Beachy Waves with Lavender Highlights

This timeless look captures the effortless essence of the ocean. By using a large-barrel curling wand, you can create soft, undulating waves that mimic the movement of the tide. The length provides ample space for the texture to breathe and flow naturally.

Lavender highlights are strategically placed throughout the mid-lengths and ends. This soft purple hue creates a cool-toned shimmer that looks especially ethereal under natural sunlight. It adds a layer of depth to the hair without being overwhelming.

To finish the style, a sea salt spray is essential for that gritty, “just off the beach” texture. Focus the product on the ends to prevent the roots from looking flat. This ensures the pastel highlights pop against the natural movement of the waves.

2. Fishtail Braid with Mint Accents

A fishtail braid is the ultimate mermaid hairstyle due to its intricate, scale-like appearance. For long hair, this style showcases the density and health of the strands. It is a sophisticated way to keep hair secure while remaining visually stunning.

Integrating mint green highlights into the braid creates a refreshing, seafoam effect. As the hair is woven together, the pastel green peeks through the sections. This highlights the complexity of the braid and adds a whimsical touch to the overall aesthetic.

For a more relaxed feel, gently pull at the edges of the braid to “pancake” it. This increases the width and makes the pastel colors more visible. A light-hold hairspray will keep the intricate weaving in place throughout the day.

3. Half-Up Dutch Braid with Rose Gold Tones

This style combines the structure of a Dutch braid with the romanticism of flowing long hair. By braiding the top section, you keep the hair away from the face while letting the rest cascade down the back. It offers a balanced look that is both practical and beautiful.

Rose gold highlights add a warm, metallic glow to the pastel palette. This shade works beautifully as a transition color, blending seamlessly with both blonde and brunette bases. Within the braid, the rose gold creates a shimmering crown effect.

Ensure the lower half of the hair is styled in soft curls to maintain the mermaid theme. Use a shine serum to give the rose gold highlights a glossy finish. This elevates the hairstyle for special occasions or festive events.

4. Voluminous Bubble Ponytail with Cotton Candy Streaks

The bubble ponytail is a playful and modern take on the traditional mermaid aesthetic. It involves sectioning a long ponytail with elastics to create “bubbles” of hair. This style is perfect for showcasing a variety of pastel tones in an organized way.

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Cotton candy pink and blue highlights are interspersed within each bubble. This creates a high-contrast, multi-dimensional look that is undeniably fun. The distinct sections allow each pastel color to be seen clearly as the hair moves.

To achieve maximum volume, tease each section before securing it with an elastic. This ensures the bubbles look full and round rather than flat. Transparent elastics are best for keeping the focus entirely on the vibrant pastel highlights.

5. Deep Side Part with Pastel Money Pieces

A deep side part adds instant drama and volume to long, flowing hair. It creates a glamorous silhouette that frames the face beautifully. This structural choice provides a great foundation for bold color placements.

The “money piece” technique focuses vibrant pastel highlights right at the front of the hairline. Whether you choose baby blue or soft peach, these face-framing strands brighten the complexion. It is an effective way to experiment with pastels without a full-head commitment.

Pair this look with sleek, polished waves for a sophisticated mermaid vibe. Use a paddle brush to smooth out curls into a uniform wave pattern. A finishing gloss will make the pastel money pieces stand out with professional clarity.

6. Mermaid Crown Braid with Pearl Accents

Crown braids are the epitome of regal, mystical styling for long hair. By wrapping the hair around the head, you create a natural halo that feels both ancient and trendy. It is a secure style that keeps the hair elegant and out of the way.

The pastel highlights woven into the crown add a soft, prismatic effect to the braid. Soft lilacs and mints work particularly well to create a dreamy, watercolor appearance. The colors shift and change as you view the braid from different angles.

For an extra touch of ocean magic, nestle small pearl pins into the braid. The white of the pearls contrasts beautifully with the pastel highlights. This makes the hairstyle perfect for a wedding or a themed photo shoot.

7. Loose Waves with Peach Balayage

Loose, barely-there waves provide a soft and romantic base for long hair. This style is less about structure and more about effortless movement. It mimics the gentle ripples of a calm sea on a summer day.

Peach highlights applied with a balayage technique create a sun-kissed, ethereal glow. This warm pastel shade blends naturally into the hair, providing a subtle pop of color. It is a sophisticated choice for those who want a more muted mermaid look.

Use a wide-tooth comb to break up any tight curls into soft waves. Applying a lightweight volumizing mousse at the roots helps prevent the long hair from feeling weighed down. This keeps the look fresh, airy, and distinctly feminine.

8. Double Dutch Braids with Pastel Ombre Ends

Double Dutch braids are sporty yet magical, making them a versatile choice for mermaid hair. They keep long hair incredibly secure while showing off the length from the back. This style is ideal for active days or outdoor adventures.

The highlights are concentrated at the ends in a pastel ombre fashion. As the braids transition from the natural root color to the pastel tips, the effect is striking. Shades like seafoam green or icy blue work perfectly for the ombre transition.

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To make the braids look more “mermaid-like,” use a texturizing powder on the hair before braiding. This provides grip and allows you to pull the braid apart for more volume. The resulting look is thick, textured, and full of colorful interest.

9. Waterfall Braid with Baby Blue Tips

The waterfall braid is a stunning choice that allows hair to flow like a literal cascade. It involves letting strands of hair drop through the braid, creating a horizontal pattern across the head. This technique is perfect for showcasing the length of long hair.

Baby blue highlights are focused on the “dropping” strands and the ends of the hair. This creates the illusion of water droplets falling through the style. The light blue hue is calming and perfectly aligned with the mermaid aesthetic.

Keep the rest of the hair sleek or in very light waves to emphasize the waterfall effect. A heat protectant spray is vital when using styling tools to keep the pastel-colored ends healthy. This ensures the blue remains vibrant and the hair looks silky.

10. Sleek and Straight with Hidden Rainbow Pastels

A sleek, straight style provides a glass-like finish that reflects light beautifully. This minimalist approach focuses on the health and shine of the long hair. It is a modern, chic interpretation of the mermaid look.

The “hidden” element involves placing a variety of pastel highlights in the under-layers of the hair. When the hair is still, the color is subtle; when it moves, a rainbow of pastels is revealed. This “peek-a-boo” effect is both surprising and enchanting.

To achieve this, a high-quality flat iron and a smoothing serum are necessary. The goal is to eliminate frizz so the pastel colors underneath can shine through clearly. It is a sophisticated way to wear multiple colors simultaneously.

11. Boho Side Braid with Multi-Tonal Pastels

A loose side braid draped over one shoulder is a classic bohemian-mermaid look. It conveys a sense of relaxed elegance that works for almost any casual occasion. Long hair allows the braid to reach impressive lengths, drawing the eye downward.

Multi-tonal pastel highlights including pink, purple, and blue are blended throughout the hair. In a braid, these colors intermingle to create a “watercolor” effect. The variety of shades ensures the hairstyle looks dynamic and multidimensional.

Leave a few face-framing tendrils out of the braid to soften the look. Use a sea salt spray on these pieces to add a bit of texture and wave. This reinforces the effortless, sea-inspired vibe of the entire style.

12. Messy Top Knot with Pastel Highlights

The messy top knot is the go-to style for a relaxed yet stylish mermaid on the go. For long hair, this bun becomes a focal point due to its impressive size and volume. It is an easy way to manage a lot of hair while still looking trendy.

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Pastel highlights located at the nape of the neck or throughout the lengths are pulled up into the bun. This creates a swirl of color at the top of the head that is very eye-catching. The contrast between the natural roots and the pastel bun is visually striking.

To get the perfect messy bun, secure the hair in a high ponytail first, then wrap it loosely. Secure with pins rather than a tight elastic to maintain the “effortless” volume. This allows the pastel highlights to be seen in a disorganized, artistic way.

13. Hollywood Waves with Lilac Shimmer

Hollywood waves are the ultimate in red-carpet glamour, featuring deep, structured ridges. This style requires long hair to fully realize the continuous S-shape pattern. It is a polished look that exudes confidence and mystery.

A soft lilac shimmer added through highlights gives this classic style a modern fantasy twist. The purple tones catch the light within the ridges of the waves, adding a luminous quality. It makes the hair look like it belongs to a mythological siren.

Brushing out the curls is the secret to achieving the uniform wave pattern. Use a shine-enhancing hairspray to lock the style in place without making it look stiff. The result is a high-fashion mermaid look that is perfect for formal events.

14. Triple Braid Pull-Through Style

The pull-through braid isn’t actually a braid at all, but a series of linked ponytails. This creates incredible volume and height that is difficult to achieve with standard braiding. For long hair, it results in a thick, textured “mermaid tail.”

Using three distinct pastel shades—like mint, peach, and lavender—makes each section pop. As each “link” in the braid is formed, the highlights are showcased in a repetitive, rhythmic pattern. This creates a high-impact look that is sure to turn heads.

Carefully pull the sides of each link to create a rounded, voluminous shape. This style is very secure, making it great for all-day wear. It provides a structured way to display complex pastel coloring.

15. Scalloped Waves with Seafoam Green

Scalloped waves are tight, uniform ripples that look like the texture of a seashell. This style is highly decorative and focuses on the surface of the hair. It works best on long hair where the pattern can be repeated many times.

Seafoam green highlights provide the perfect color accompaniment to this aquatic texture. The light green hue reinforces the connection to the sea and its many colors. It creates a fresh, vibrant look that feels very authentic to the mermaid theme.

A crimping iron or a specific triple-barrel waver is usually required for this look. Be sure to use a firm-hold spray to keep the scalloped ridges defined throughout the day. This creates a very intentional and artistic mermaid aesthetic.

16. Space Bun Half-Updo with Pastel Ends

Space buns offer a playful, celestial vibe that perfectly complements the mermaid aesthetic. By doing a half-up version, you get the fun of the buns while keeping the long hair flowing. It is a youthful and energetic style for festival season.

The pastel highlights are featured both in the buns and flowing down the back. If the ends are dyed in a pastel ombre, the buns will be entirely colorful, creating a bold statement. Popular choices include vibrant pinks or electric purples.

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Use glitter hair gel at the roots for an extra touch of “magical mermaid” flair. This style is all about being bold and experimental with both shape and color. It is a fantastic way to show off a multi-dimensional pastel dye job.

17. Twisted Rope Braid with Iridescent Highlights

A rope braid consists of two strands twisted together to look like a sturdy nautical rope. It is a simple yet effective way to manage long hair while maintaining a thematic look. The twist creates a unique surface for color to play across.

Iridescent highlights, which use very thin strands of multiple pastels, look incredible in this twist. As the hair is rotated, different colors like opal, silver, and soft blue come to the front. This mimics the shimmering interior of an oyster shell.

Apply a small amount of hair oil to your hands before twisting to ensure the braid is smooth and frizz-free. This allows the iridescent highlights to shine with maximum clarity. The rope braid is a sleek, modern choice for any occasion.

18. Volume-Packed Waves with Pastel Tinsel

For those who want extra sparkle, integrating hair tinsel with pastel highlights is a game-changer. The tinsel adds a literal metallic shimmer that complements the soft pastel tones. This style is all about “more is more” when it comes to magic.

Huge, volume-packed waves provide the body needed to support the tinsel and highlights. Focus the volume at the crown and through the mid-lengths for a dramatic silhouette. The pastel highlights act as the base color for the sparkling tinsel accents.

Tinsel is easily tied into the hair and can withstand low-heat styling. When you move your head, the tinsel catches the light, creating a glimmering effect similar to sunlight on water. It is a festive and fun way to enhance the mermaid vibe.

19. Criss-Cross Braided Half-Up Style

This intricate style uses multiple small braids that criss-cross over each other at the back of the head. It creates a “netting” effect that is very much in line with a nautical or mermaid theme. The rest of the hair flows freely underneath the braided net.

Pastel highlights should be placed in the sections used for braiding to make the pattern stand out. If the braids are a different color than the base hair, the criss-cross effect becomes much more visible. Soft blues and greens work well here.

Ensure the free-flowing hair is styled in long, loose curls to contrast with the tight braids. This mix of textures makes the hairstyle look complex and professionally done. It is an excellent choice for showing off the length and color of your hair.

20. Soft Shag with Pastel Face Framing

The modern shag is all about layers and texture, making it perfect for thick, long hair. It provides a lot of natural movement and a bit of a “rock and roll” edge to the mermaid look. The layers help the pastel highlights appear more integrated.

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Face-framing pastel highlights in shades like soft peach or lilac brighten the face. Because the shag has shorter layers around the front, these highlights are very prominent. They add a pop of color that draws attention to the eyes and cheekbones.

Use a texturizing spray to enhance the choppy layers of the shag. This style is meant to look a bit “undone,” which fits the natural, wild aesthetic of a sea creature. It is a low-maintenance way to wear long, colorful hair.

21. Fishtail Pigtails with Pastel Ombre

Fishtail pigtails are a whimsical and sweet way to style long hair. By splitting the hair into two, you can showcase a lot of detail on both sides of the face. This is a great style for photos or casual outings where you want to look unique.

A pastel ombre that transitions from a natural root to a bright pastel tip looks incredible in pigtails. The color change happens at the same level on both sides, creating a symmetrical look. This makes the pastel colors feel balanced and intentional.

Pull at the sections of the fishtail to make them look wider and more “fin-like.” This increases the mermaid aesthetic and makes the pigtails look much more voluminous. Use colorful elastics at the bottom to match the pastel highlights.

22. Wrapped Ponytail with Pastel Highlights

A high, wrapped ponytail is a sleek and powerful hairstyle for long hair. By wrapping a strand of hair around the elastic, you create a polished, seamless finish. This style emphasizes the length and the sleekness of the hair.

Pastel highlights running through the ponytail add a streak of fantasy to the polished look. When the hair is gathered together, the colors become more concentrated. This creates a “tail” effect that is very much in the spirit of a mermaid.

Use a flat iron to make the ponytail perfectly straight for a high-fashion look. A shine spray is essential to ensure the pastel highlights look vibrant rather than dull. This is a sophisticated way to wear bright colors in a professional or formal setting.

23. Textured Mermaid Braid with Shell Clips

The “mermaid braid” is typically a very wide, loose, and messy braid that looks effortless. It often incorporates multiple smaller braids within it for added texture. For long hair, this creates a massive, impressive braid that sits down the center of the back.

Pastel highlights in seafoam green and soft blue are perfect for this specific style. The colors mimic the various shades found in a breaking wave. The texture of the braid allows the different pastel tones to blend and separate beautifully.

Accessorize the braid with small shell-shaped clips or starfish pins. This leans into the theme fully and provides a focal point for the style. It is a quintessential mermaid look that is perfect for any fantasy enthusiast.

24. High Gloss Waves with Pastel Tint

High gloss waves are all about a “wet look” finish that suggests the hair has just been submerged. This is a more editorial and daring take on the mermaid hairstyle. It requires a lot of product but yields a very high-impact result.

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A subtle pastel tint rather than bold highlights works best for this glossy style. Imagine a wash of mint or rose gold that only appears when the light hits the “wet” surface. It creates a sophisticated, ethereal glow that is very modern.

Use a mixture of hair gel and shine serum to achieve the wet look without making the hair crunchy. Comb the product through from root to mid-length, leaving the ends slightly drier. This creates a realistic “emerging from the water” aesthetic.

How do I maintain the vibrancy of pastel highlights in long hair?

To keep pastel highlights from fading, it is essential to wash your hair with cold water. Hot water opens the hair cuticle, allowing the pigment to escape much faster. Additionally, use sulfate-free, color-safe shampoos and conditioners specifically designed for delicate tones. Reducing the frequency of washes and using dry shampoo can also extend the life of your color significantly.

Which pastel colors work best for darker long hair?

For those with darker base colors, more saturated pastels like lavender, deep peach, or teal tend to show up better. Often, the hair must be lightened first to achieve a true pastel tone. If you prefer not to bleach your hair to a very light blonde, consider “oil slick” highlights. These use jewel-toned pastels that create a prismatic effect on darker strands without needing extreme lifting.

Can I achieve mermaid waves without using heat?

Yes, heatless mermaid waves are very achievable on long hair and are much healthier for pastel-treated strands. You can try the “braiding method” by sleeping in several damp braids overnight. Alternatively, use silk heatless curling rods or the “robe tie” method to create large, bouncy waves. These methods help preserve the moisture in your hair, keeping your highlights looking shiny and vibrant.

Are mermaid hairstyles suitable for professional environments?

Absolutely, many mermaid styles can be adapted for a professional setting. Sleek, straight styles with hidden pastel highlights or a polished Hollywood wave with subtle lilac tones are quite sophisticated. You can also opt for a low, neat bun or a structured French braid to keep the look contained. The key is to balance the whimsical colors with a controlled, tidy hairstyle.

What are the best accessories for a mermaid-themed look?

Beyond the hair itself, accessories can truly define the mermaid aesthetic. Look for items like pearl-encrusted pins, gold or silver shell clips, and iridescent headbands. You can also use “hair tinsel” in pastel shades to add a subtle sparkle that mimics sunlight on water. For a more bohemian vibe, consider weaving small pieces of dried sea grass or silk ribbons through your braids.

How often should I touch up my pastel highlights?

Pastel colors are notoriously fast-fading because the molecules are quite large and sit closer to the surface of the hair. Generally, you can expect to need a color refresh every 3 to 5 weeks depending on your washing habits. To stretch the time between salon visits, you can use color-depositing conditioners at home. These products add a small amount of pigment back into the hair each time you condition.