what is the first colour in rainbow?

red

Red is usually the first color people see when looking at a rainbow. The order goes like this

Red

Orange

Yellow

Green

Blue

Indigo

Violet

red

red

Depending on where you look, it is infra-red or ultra-violet, both of which cannot be seen by the naked eye.

Red.. then orange, yellow, green, blue, indigo, violet

it is always red.

red

ROYGBIV

R-red

O-orange

Y-yellow

G-green

B-blue

I-indigo

V-violet