How do you say the seven colors of the rainbow in English?

The seven colors of the rainbow are red, orange, yellow, green, blue, indigo and purple.

Expressed in English as: red, orange, yellow, green, blue, indigo and purple.

The formation of the rainbow:

Rainbow is an optical phenomenon in meteorology. When sunlight hits the raindrops in mid-air, the light is refracted and reflected, forming an arched color spectrum in the sky.

Rainbow English: Rainbow

Example:

The dark sky set off a rainbow.

A rainbow appeared in the dark sky.

According to American media reports 20 14, 10, 10, Colin leonhardt, a photographer from Perth, Western Australia, captured a strange whole rainbow while crossing the Cotzlo Beach. According to the National Aeronautics and Space Administration (NASA), the full circular rainbow phenomenon has a great relationship with the observer's position, which is mainly formed by the internal reflection of raindrops on sunlight.