I don't have a specific color in mind but here's an example of something a touch warmer in wall color. This is shown with your fantasy brown countertop as well.

(Kind of hard to see, but the color on the far right wall. I couldn't find a better photo)

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Very pretty. Is the sea salt supposed to be white? It is reading a little green. I'd try to match the white color in the counter.

Sea Salt is a pale, desaturated greenish-grey. I actually love what you've chosen. Contrast is what makes something interesting, and I think if you go warmer you lose the contrast.