'you want to make it look more gray as the rest of the house is". why? why does it have to be gray? you have a travertine w/very warm yellow/beige/peach tones. why do you want to force a color on it that isn't the best? forget gray. At least any of the blue grays. try SeaSalt, or a soft sage, or Pale Oak, or soft tan tone.

I think the following sherwin williams colors are good options: light French gray comfort gray classic French gray frostwork Dorian gray I hope you find a good color!

Hi! The SW Sea Salt looks like a great color for the bathroom and design plans! It's a bit lighter than the SW Oyster Bay which is perfect for a bathroom with limited natural light. It also resembles the green hue of SW Oyster Bay to create a cohesive style! From the shower, floor and counter design to the satin nickel of the faucet, SW Sea Salt seems like an excellent choice! Best of luck!

The trim is BM Snowfall White 2144-70 and not changing. Why not use the same white for the walls then? If you're looking for white walls, I mean. (Or is it too cool with the wood?) Use a different sheen to offer the eye a bit of contrast or difference. Otherwise, check out what BM suggests it goes with: Silver Mist, Excalibur Gray or Ice Formations are the three lighter of the four colours they suggest. Maybe you can play around with those suggestions. (My local BM stores have decorators onsite to help clients with their colour palettes. Perhaps an idea for you?) Alternatively, you can paint match your tile surfaces (with an app like BM's ColorPortfolio) to give you a palette starting point. I'd try a few shades lighter than the green in your counter, for example. If the SW Sea Salt doesn't feel right in the space for you, try to figure out why. Is the blue in that colour coming out too strongly for you? Is it too light? Does it make your complexion look sickly? Etc. There can be a variety of reasons why a colour just doesn't suit a space for us but without knowing the reason, it can be difficult to figure out how to improve it. FWIW, I would not paint the vanity or mirror trim. Both are gorgeous and complement the counter really well, imo.