A gradient night sky with faint stars on a purple and blue background.

What Is a Rainbow?

What is a rainbow? Kid-friendly guide to how it forms, the seven colors, double rainbows, and easy tips for spotting one after rain-fun and clear.

dúha nad kopcami

A rainbow is a beautiful, colorful arch that appears in the sky after a rain when the sun comes out. Maybe you’ve seen one-it looks like a bright curve filled with colors from red all the way to purple. Kids and adults often get excited about rainbows, and there’s a fun old legend that says treasure is hidden at the end of a rainbow.

How Does a Rainbow Form?

A rainbow happens when sunlight shines through tiny drops of water in the air and is reflected and refracted. When the sun’s rays hit those droplets, they separate the light into colors, and we see an arch made up of different shades. If there’s a rainstorm and then the sun peeks through the clouds, you have a great chance of spotting a gorgeous rainbow.

What Colors Are in a Rainbow?

Rainbows have seven main colors you can spot: red, orange, yellow, green, blue, indigo, and violet. They look like they’re dancing together in a giant arch across the sky. Look closely and try to spot each color in order-from red to violet!

Cool Facts About Rainbows

Sometimes, you might even see a double rainbow-two colorful arches, one outside the other! Some people think rainbows are magical and mysterious, which is why fairy tales often say there’s a pot of gold at the end. Is it true? It’s just a fun legend, but it’s exciting to imagine!

How Can You See a Rainbow?

To see a rainbow, watch the sky after a rain shower when the sun comes out. Turn your back to the sun, and you might see that amazing splash of color in front of you. Don’t worry about missing it-if a rainbow shows up, it’s often bright and easy to spot. So keep your eyes open and enjoy the colorful magic!

Read the story about the marvelous rainbow!

A girl in a red dress stands on grass, looking at a rainbow over green hills.

The Secret of the Rainbow

A brave girl restores a gray rainbow with joy and memories in this magical fairy tale for children about hope, love and the power of happiness.