How many colours are there in a rainbow?

How many colours are there in a rainbow?

How many colours are there in a rainbow?

Isn’t it… seven colours?

Isn’t it… seven colours?

Umm… right…

and wrong.

In Japanese, it’s seven colours.

In Japanese, it’s seven colours.

But in English it could be six colours.

There’s also other languages that mentioned four or two colours.

So there’re many correct answers, aren't there...

Originally, colours had no border.

Ehh...