The Colour palette that I have attached is only a ruff guide line... Are you painting the cupboards in a Dulux colour? What do the cupboards look like, for example the grain? I personally would look at a shade of green colour or blue. My examples might not be perfect as my monitor does not display colours well. What are you thinking for flooring and backsplash?

I wouldn't go those dark laminate kitchen cupboards. I have the exact same and I absolutely loathe them now. I use to love the darker colours but now I wish I had just done them white, light gray or even the dark blue (although dark blue worries me a little too!). That dark laminate brown is such an absolute pain to keep clean. They show up every mark. I like your stone bench tops though but would look at other options to create the look you're hoping for with the joins and waterfall benches etc. Goodluck with it all!

I don't think it is a photo of a real kitchen. It looks like a render done on a computer where the colours and materials are an approximation of real colours. I think it is supposed to look like a granite. Best of luck, Dr Retro of Dr Retro House Calls/Dr Retro Virtual Visits

The mantle is a trim, so therefore paint it the same as the other trims.