OH! MY EYES!

That is what you would shout, were you to see a bright colour.

This is because the eyes of a man are not supposed to be able to see bright colours.

It has something to do with evolution.

Nevertheless, although we cannot see these colours, they do still exist.

And thanks to the power of electrics, we can generate these colours on a computer, and observe them safely.

The greenest colour is bright green - known in computer language as '0,255,0' or '00FF00'.

Try it out!