I think there's enough contrast between those grays in the 1st pic, but really depends on the look you are going for and what your backsplash, paint, and hardware will look like. Any ideas about those? I actually really love the Frosty Carrina. I did not consider it until late in the game because I thought it was a little bland based on the sample, but when I saw the full slab, I changed my mind.

Kadefol both yes and no. I made a rolled cake one Christmas. Between a quarter to a third was left. It disappeared from the front of the frig and I thought someone had eaten it. I found it in the back of one of the shelves when I started cleaning it out a couple of months later. The cut end had whipped cream from edge to edge. When I was scraping the container a blob or the whipped cream landed on my hand. In removing I noticed that it felt and smelled like any other whipped cream. All it had on were two pieces of Glad wrap.

I would go with cool white with blue, green or gray undertones such as Decorators White or off-white.

Chantilly Lace everywhere would be too cold for me, but there are many people who like the all white look. Do you have to paint before everything is installed? The best way to do this is to have the cabinets and counters installed, then pick a backsplash and paint last. Have you looked at a sample door next to your counter choice? I haven't seen Frosty Carrina in person but the description of it on Caesarstone's website refers to it as being ivory. How does that look with Chantilly Lace which is a very white-white? What color are your floors? The reason Jan Moyer is asking you about the rest of the house is because context is very important. Is this a new build or a remodel? Can you show us some pictures for context?