Start with the first box and scroll down. Each colour box has a its own word in it. If you are able to read all the words in each box, you’ll know that you have perfect colour vision.
Start here:

Next image:

Keep going:

So far so good:

This one’s easy:

Almost done:

Bet you’ll never get this one:

Last one:

Great work! Share with your friends and see how they do.