This hidden hair color technique feels 5 degrees cooler in July heat (colorists reveal why)

Summer 2025 is heating up, and so is one of the season’s most captivating hair trends. Underlayer ombre has emerged as the perfect way to add a splash of personality to your look without committing to a complete color transformation. This technique, which involves coloring the hair beneath your top layers for a surprise pop of color, offers the perfect balance of subtlety and statement for the warm July days ahead.

What exactly is underlayer ombre?

Unlike traditional ombre where color gradually transitions from dark to light throughout visible hair, underlayer ombre keeps your natural shade on top while hiding vibrant colors underneath. “It’s like wearing a secret identity in your hair,” explains colorist Emma Rodriguez from Stellar Salon. “The beauty lies in the reveal—when you move your hair or style it in certain ways, those hidden colors make a stunning appearance.”

This technique works brilliantly with summer’s carefree vibe, offering a refreshing style option that feels notably cooler during hot July days while maintaining professional versatility when needed.

Why underlayer ombre is perfect for summer 2025

The beauty of this coloring technique lies in its adaptability to summer activities. Whether you’re enjoying beach waves or pulling your hair up to beat the heat, underlayer ombre delivers those unexpected flashes of color that capture summer’s playful essence.

Hair stylist David Chen notes, “Summer 2025 is all about personalized expression with minimal commitment. Underlayer ombre gives clients the freedom to experiment with vibrant colors while maintaining a more natural appearance for professional settings.”

For those with medium-length bobs or shorter cuts, this technique adds remarkable dimension and movement that can transform even the simplest styles.

Popular color combinations for summer underlayers

This season’s most requested underlayer color combinations include:

  • Sunset ombre – transitions from warm copper to bright coral
  • Ocean waves – blending teal, cobalt and turquoise
  • Berry punch – gradient purples from lavender to deep plum
  • Golden hour – amber to pale yellow transitions

Perfect cuts to showcase your underlayer

Certain haircuts naturally enhance the peek-a-boo effect of underlayer coloring. Chin-length bobs with textured ends create beautiful movement that reveals hidden colors. Similarly, blunt cuts with layers provide the perfect canvas for this technique.

For those maintaining longer lengths, ask your stylist for strategic layers that reveal your colorful underlayer when hair is tousled or styled in half-up arrangements.

Low-maintenance appeal for busy summer schedules

One of underlayer ombre’s biggest advantages is its grow-out process. Since the top layer remains your natural color, roots are much less noticeable compared to traditional coloring techniques.

“It’s like the mullet philosophy of hair color—business on top, party underneath,” jokes Rodriguez. “This makes it perfect for clients who want something fresh for summer without constant touch-ups.”

Styling tips to showcase your hidden colors

To make the most of your underlayer ombre, try these styling approaches:

  • Deep side parts that reveal colored sections
  • Half-up styles with the colored underlayer showing beneath
  • Braided styles that weave together natural and colored sections
  • Beach waves that create natural movement and color reveals

Protecting your summer color investment

Summer sun, chlorine, and saltwater can quickly fade your vibrant underlayer. Use color-protecting products and consider wearing hats during peak sun hours to preserve your color’s intensity through the season.

Whether you’re dipping your toes into vivid colors for the first time or looking for a fresh way to express yourself this summer, underlayer ombre offers the perfect blend of subtlety and statement. It’s like carrying summer’s vibrant energy wherever you go—revealed only when you’re ready to share it.