Rainbow fish nails: This salon-requested finish turns your nails into mermaid scales all summer long.

This spring 2026, a new nail art trend is making its mark on all hands. Rainbow fish nails seduce with their iridescent reflections and fairy-tale allure. This manicure inspired by sea creatures transforms nails into veritable mermaid accessories.

An aquatic manicure that makes a splash

After lace-like nails and spring nail jewelry adorned with rhinestones, we now turn our attention to a resolutely marine aesthetic. Rainbow fish nails play with light effects to recreate the shimmering appearance of scales underwater. Each manicure becomes unique, with an infinite number of possible variations.

This trend relies on shine and highlights rather than pure color. Chromed, cat-eye or pearlescent varnish: anything goes. Brilliant shades are superimposed or blended to create a hypnotic, almost liquid effect.

The result captures the light with every movement of the hand. This characteristic makes Rainbow fish nails particularly suitable for sunny days.

“The ‘rainbow fish’ trend plays with light effects and iridescent finishes to recreate the shimmering look of scales underwater.”

From catwalks to social networks

This aquatic aesthetic isn’t limited to Instagram. It was also spotted at the Chanel Croisière 2026 fashion show, held in April 2026. Nail artist Ama Quashie imagined glittering manicures inspired by marine scales.

The palette chosen was subtle and luminous. Unsurprisingly, beauty influencers quickly seized on the phenomenon. They are now multiplying the colorful, high-gloss variations on their accounts.

• Chrome finish for an intense mirror effect
• Cat’s-eye effect for changing highlights
• Pearlescent varnish for soft shine
• Layering complementary shades
• Varied textures for a unique look

How to adopt Rainbow fish nails at home

To reproduce this look at home, opt for a selection of pearlescent or iridescent nail polishes. Choose complementary tones that complement each other. The idea is to play on the reflections to create a subtle, luminous flake effect.

Fans of false nails can opt for customizable capsules. Some brands offer kits designed to create your own mermaid-effect manicure. This is a no-obligation way to try out the trend.

But be careful not to overload the result. The beauty of Rainbow fish nails lies in the delicacy of the reflections. Too much color can detract from the desired effect.

The salon option for a professional look

In the salon, simply ask for a chrome finish or a cat-eye effect. Specify your favorite shades for a personalized result. Our nail technicians are experts in these techniques and will be happy to advise you.

The final result is nails that sparkle like the surface of water. This mermaid manicure is perfect for the summer season. It works equally well on short or long almond-shaped nails.

Why this trend is so appealing

Rainbow fish nails respond to a desire for fantasy and escapism. In 2026, nail art continues to reinvent itself season after season. Nails become true style accessories, just like jewelry or a bag.

Taking care of your hands is now a common beauty reflex. A luminous complexion, well-moisturized skin and perfectly manicured nails form a coherent whole. This attention to detail reflects a holistic approach to well-being.

The fairy-tale aspect of this manicure is particularly appealing. Iridescent reflections evoke sea creatures and the ocean floor. This dreamlike dimension partly explains the trend’s viral success.

With the warm weather just around the corner, Rainbow fish nails are the perfect choice. This ultra-iris manicure promises to stay on every hand for months to come.

• Rainbow fish nails