What are the seven colors of the rainbow?

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

it is expressed in English as: red, orange, yellow, green, blue, indigo, violet.

Formation of 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 colorful spectrum in the sky.

rainbow

Example:

A rainbow rose against the dark sky.

A rainbow appeared in the dark sky.

According to American media reports on October 1th, 214, Colin leonhardt, a photographer from Perth, Western Australia, captured a strange full-circle rainbow while traveling through 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.