Take a look at Benjamin Moore Silver Sage or Gray Wisp, both lovely, serene grayed-green colors that I think may work well in your pretty space.

All of your finishes are very nice and since they're a neutral color, there are a million paint colors that can go on your walls. Since it's the master bath, are there colors you'd like to bring in from the master bedroom? The only color I wouldn't recommend is any shade of standard grey since there's already much of that in your finishes. Greyed blues, aquas or greens would be nice.

Thank you guys! Yes our master is pretty gray too. It’s dolphin fin by behr. I would LOVE to do something different than gray but have no idea what!!!

I like your sample. Should make everything in the room pop in contrast.

Did you paint your vanity? The color looks really good with your flooring.

@cindy-I did not paint it. It was that color! We just replaced the top.

If you like Behr paint (I think it's the best, and no, I don't work for Home Depot :), I love Rhino. It's a greyed-bluish-greenish, very soothing and calm. It would work well with the rest of the room.

I'd go with the top right tone next to your mirror. Having contrast makes for a beautiful scene and a light tone will do that.

I don't find Behr paint easy to apply or forgiving for painters who don't do it every day.

That's interesting, Beverly, because I find Behr to be exactly the opposite. I've found BM and SW to be inferior to Behr's quality. I think those two brands have become somewhat of knee-jerk recommendations because they are the darlings of home improvement TV shows due to sponsorships. For me, Behr goes on a wall very smoothly and covers extremely well. And I certainly don't paint every day. :-)

Maybe a noticeable “bluish”gray...next to your all the other colors it will read

Blue...or any gray with an undertone of color...greenish gray...pinkish gray...grayish aqua...but since there isn’t a lot of space or walls I would keep it on the pale side....any good paint store can direct you toward these colors...it won’t be apparent to you from the swatches ...but on the wall it will be more apparent...personally I love very pale aqua with your colors

A pretty gray-ish blue or green for sure. Would be a great mix with the gray shower tile.

We painted our bath greige. Love it. Vanity top and shower are white. Floor is ceramic tile with white and grey in it. I have white curtains and use pink or aqua towels...shower curtain and ceiling are white.