feature wall colours?

[DumbledoresArmy]

Anyone have any pics of their feature walls?
We're moving to a new build property soon so complete new canvas.

I'm thinking a grey feature wall in the living room & possibly a deep blue in the main bedroom.
Other walls white/off white throughout.

We're not wallpapering.

Undecided on dining/kitchen as yet.
It'll be a dark wood fitted kitchen & black flooring.

Any ideas/pics would be great!