Color-changing technology

A little sunlight. An entirely new look.

Men's Color-Changing Dark Octopus T-Shirt - Black Dark Octopus men's tee without sun

Comparing both. Drag the sun handle or use the buttons.

Discover Spectrachrome®, Del Sol's proprietary technology that reveals color when exposed to the sun's ultraviolet rays.

How it works

Real product photos: Dark Octopus Tee, indoors and in sunlight. Drag the sun to compare.

How Spectrachrome® works

Meet Spectrachrome®. The color is waiting.

Del Sol's proprietary Spectrachrome® technology causes its clothing and accessories to change colors when exposed to sunlight. Here's what happens, with and without the sun.

Indoors

Without sun

  • Organic crystals indoors

    Out of the sun, the crystals rest and your product returns to its original colors.
  • Times two

    Two looks and two colors in every product.
  • Hidden colors

    The color is there all along, just invisible to the human eye. Some bats can actually see it.
Without sun image With sun image
Same Beach Bum Women's Tee, real photos: indoors (left), in the sun (right).

Outdoors

With sun

  • Molecular excitation

    The sun's UV rays make the crystal molecules shift and twist. Chemists call it a molecular excitation transition.
  • Organic crystals outdoors

    Step into sunlight and the crystals reveal their colors.
  • Sunscreen sensor

    The color change lets you know the UV index is high.

Indoors and out

Every time

  • Fast, bright, vibrant

    Colors change back and forth within seconds.
  • Guaranteed for life

    Changes colors in the sun for the life of the product.

In plain words

Four ways to picture it. No lab coat required.

The science behind Spectrachrome® is clever. The way it works is easy to picture.

  1. Blooming flower

    Much like a flower opening in the sun, the hidden colors in Spectrachrome® crystals twist and unfold into vibrant color in sunlight, then return to their original color without it.

  2. Molecular shift

    In sunlight, Spectrachrome® molecules shift into the part of the spectrum the human eye can see. It's called a molecular excitation transition. Try saying that three times fast.

  3. Rocket science

    NASA explored color-change technology for its space program. Del Sol enhanced it with its own special formula, for everyone under the sun.

  4. Cloudy day

    Don't let grey skies fool you. Even on a cloudy day, 80% of the sun's UV rays still pass through the clouds.

THE PALETTE

300+ color varieties

From soft pastels to deep brights, Del Sol's color-changing palette spans more than 300 color varieties. That's a lot of ways to enjoy the sun.

LIGHT
BRIGHT
DEEP

Illustrative swatches, not exact product colors.

One technology, many products

Same sunshine. Different surprises.

Indoors
White Beach Bum tee indoors with navy line-art palms and waves.
In the sun
The same Beach Bum tee in sunlight with blue waves, green palms and pink flowers.

Beach Bum Women's Tee

What changes
The printed artwork

Indoors, the graphic reads as crisp navy line work. Step outside and the waves, palms and flowers fill in with color.

Shop color-changing tees
Conceptual color-change technology artwork
Conceptual artwork, not a documentary photograph.

WHERE IT STARTED

An unexpected
beginning.

A brighter everyday.

NASA explored color-change technology for its space program, specifically for the transitional lenses on astronauts’ space helmets. Del Sol enhanced it for everyone under the sun.

It's not rocket science. Then again, maybe it is.

MADE BY DEL SOL

Behind the color.

Inside the details.

Del Sol is the only producer of Spectrachrome® crystal dyes. Each crystal is chemically engineered using all-organic materials. Here “organic” refers to the chemistry, not a certification.

0+
color varieties in the palette
0+
product variations tested since 1994
Colorful laboratory glassware illustrating color-change technology

Illustrative image, not a photograph of a Del Sol facility or test.

GOOD QUESTIONS

A few things worth knowing.

Spectrachrome®, Del Sol's proprietary crystal dye. When the sun's ultraviolet rays reach the crystals, the dye shifts, a molecular excitation transition, and its color becomes visible to the human eye.