[frosted-flakes]

"The red one is gorgeous" would be the idiomatic way of saying that. Adding the word "colour" is redundant.

"Colourway" is just marketing-speak that is not common outside of tech reviewers.

[darrenf]

> "Colourway" is just marketing-speak that is not common outside of tech reviewers.

This needs a big dose of YMMV, I think. I've heard the term way more outside of tech, especially for footwear and in skateboarding.