What else is in the room? Surely there is more than walls and tile.

White

I also don’t know what vanity color to get

" White "

White what?

" I also don’t know what vanity color to get "

Do you pics of what is there now? Any inspiration pics? Anything for context? Help us help you.................

pretty tile.

Go to a Sherwin Williams. They can now shoot the blue color and come up with actual SW colors to consider.

Then when you fine tune, order Samplesize of the colors to see how they look with the tile and with your lighting.

Vanity can be white or maybe white oak.

I went but the store wouldn’t do that

So did you look at chips to find a color that looked like it went with the tile?

Maybe Lily white or first snow by Benjamin more

SW ' wouldn't' or 'couldn't' help you color match? If they 'wouldnt' I suggest you go to another paint store and use the forest green colour in the tile shown with your tile. If they 'couldn't' go back and use the forest green for the vanity and 50% of the same colour for the walls.

My tile is the blue tile. I don’t think forest green would go.

Go to a different store! Or home Depot.