Our cabinets are BM Gardenia, a very warm white. We matched the trim to the cabs, including the baseboards. For the ceiling, we went with BM ceiling white, whatever that is. For us it worked out well. The business of "layering whites" has worked out well for many posters on this site. Personally, I think, that except for the ceiling, as long as there is some separation between the whites, you can have almost as many shades as you like. Like you, we also went with a grey-ish color for the walls. Ours is a 50/50 mix of BM Metallic Silver and Pidgeon Grey. If you're looking for a light grey, look at BM Metallic Silver. It was too light for us, but it may work for you. Also, keep in mind that paint is the easiest and least expensive thing to change. Here's a shot of our kitchen and below it, a link to the completed kitchen slideshow. HTH. Here is a link that might be useful: Completed Kitchen

If you throw out off whites that are yellow and red-based, you will be left with taupes, putties, and beiges. Tertiary off-whites. (assuming you don't want a blue or green based off white) Casey

BM London Fog. It looks great against our white cabinets and our quartz is VERY close to your color from what I can tell. The London Fog matches the background tone of the quartz nicely and the white cabinets give it a fresh, clean, updated look. Not the best picture because our deck outside casts a pink tone to our wall, but you can see the quartz, wall color and white door in this pic to see how they work together. Here is a better picture of the wall color over by the ovens and up against the cabinetry. It looks darker here than it typically does in the light of day.

Do you need warm or cool tones in the white? There is no best one...depends on wall color, trim, flooring, and counters. Photo?