I am obsessed with large format subway tiles (4x16). I'd try to match the white for the tile, and maybe pull one of the lighter gray colors from Brittanicca to be the grout color. Depending on your floor maybe you could pull one of the lighter colors as your paint color- this way you'll have some contrast without taking away from the Cambria! I'm attaching a photo of 4x16 with a contrasting grout!

@Lisa I do have a question for you! The thing that concerns me about Cambria is the heat comments. I would never put a hot pan on any countertop. BUT what about things like an All Clad Slow Cooker? Moccamaster or Nespresso Coffee maker? Instant Pot? What things like this needs something under them to use? Air Fryer.. I would think Vitamix would be fine? I think it would look awful to always have something under the coffee make or Vitamix. The other things are not kept on the counter. I have never had to use something under them with the granite countertops. I don't Have to go with quartz. If I do go with quartz it will definitely be Cambria. I thought about going with marble but I am a messy cook! I still want to see your blue when I go back to the beach. (My husband seems to be set on Cambria white! But that might be more due to him being tired of ldiscussions about the countertop.)

101streitired. looks very nice. could I offer one tiny bit of advice? thanks! The window. what you have is all very white and very solid. the mini blind is my pet peeve over kitchen windows. let me show you a photo shop of a new window treatment, and possibly a sconce. ( realize you can't do a pendant, and I know you have the trim piece across the front. but at least look at the window treatments) don't be afraid to add some cutting boards and greenery to the mix either

You're not going to know without sampling. Whites are tricky and it's hard for us to determine small differences in colors on monitors. I would start by looking at White Dove and Chantilly Lace. If those look too cool, look at Simply White.