A cream or creme brule colour.

I would pick a cool, fresh light to medium grey with blue undertones, that doesn't clash with the dishwasher. I like the crispness of your whites with your cupboards and counter tops

Do you have a color that you really like?

I would paint the walls white like the bottom half. Then add color in the light fixture, items on the counters, and hang something behind the sink. A colorful plate or picture on the wall would be nice. I have to be budget-minded, so I am always thinking of cheap, easy ways to be able to change colors when I get the urge.