A soft, warm grey shade would look lovely, and can be as dark or light as you want. A warmer shade will work with the brown stained wood floor, and the grey will complement the black granite. You could have an undertone of green, blue or tan if you didn't want a pure grey. And it would look nice with any silver metal hardware, either polished or satin/brushed, so you could choose pewter, chrome or nickel. It would still work with white trim too.

I have a hard time seeing a true color on my PC, however I think the shade of this color is too much like the shade of your lovely cabinets. It may make it very dark. Do install under cabinet LED lighting on dimmers whatever you do.

Since your slab is white and the floor is beige, I would suggest bold colours. It could be a deep blue or a dark grey or a bright yellow for that matter. The exact choice of colour would depend on your walls and the personality of your other rooms as well. Could you shed some light on those?

Hi The shade of cabinets depends.on A : shade of your platform.top , wall & floor tiles. Pls email image.of them to Info@spcontractors.in. we can take .it forward from there Thanks Good day