I'm not 100% sure what you're asking, but if you're looking for suggestions whether to make the lower cabinets grey and the upper cabinets white or vice versa, then I would be tempted to make the lower cabinets grey. I think this would help to make the ceiling feel higher and the overall space larger and brighter. But, it may depend upon what style you're going for, whether you have an island benchtop and, if so, what material/colour will be on the rear/exposed side of the island benchtop, the amount of natural lighting, etc. You can easily search through Houzz photos by room, size, colour, materials, etc. Here are a few examples I found from a quick search which may help:

Looking for advice of what the best dark colour (Matt finish) we could use for kitchen cabinets that would go well with a Black galaxy granite benchtop (black with bronze flakes through it). Thanks

Hi Kieren, a rich, cool sand colour might work. Avoid yellow undertones. I think you’re right to stay away from anything too dark. Or try a pale beige textured rug. Added bonus, it’d be easy to find. A rug that mixes something similar to your couches with a LITTLE bit of green and maybe a bit of blue could also look nice. Accent the room in mid blue too, maybe? Stay in proportion to the room, but go bigger rather than smaller with the rug. Rug retailers will usually lend you a rug so you can try before you buy, which can be useful and some will bring samples to your door. Good luck

Natural white is a little warmer as it has a touch of red. It’s a personal choice. So if we all post you will prob get 50/50 result. If you want the gallery look go white on white.