Rainbow carrots

I have grown White satin, Solar Yellow, Red Samurai and Cosmic Purple.  I found the yellow, white and purple ones were  very 'carroty' in taste which I like.  The red ones were unremarkable and didn't grow well.  I intend to sow the yellow, white and purple again.

Interesting.

Do they keep there colour when they are cooked?

The white and yellow ones do, I think the purple did too but a bit faded.  The red not so much.  They are all of course more vibrant raw.