I also chose to do white paint (with white tile) in a new bathroom remodel. The bathroom is average sized, but has no windows. I think it's a personal preference as to what color (or lack of color) looks best. And it all depends on what "feeling" you want from the room. I think Sweeby is right that a deep paint color would be dramatic (and possibly cozy and warm, depending on the color) and have a very pleasant feeling. I wanted an open, crisp, clean feel and had no desire for cozy or warm. Though I'm not done with the remodel, so far I'm very pleased with the color. I'm not certain that I can give you specific colors to try, but I can tell you how I selected mine. I took every single white paint chip home from the store and sat down with the paint chips and my tile. I then sorted through the "definitely nots" (whites that had too much yellow, pink, blue, green, etc) and narrowed down to a few that I really liked. I then really held them up to the tile I'm using to see how the colors played off of each other. My concern was that I did not want the tile or the paint to look "dirty" due to an unflattering contrast. I ended up selecting Ralph Lauren "Grand" because I felt it best complimented the color of the tile. Unfortunately I don't think the color I selected fits your "clear but creamy". But I do highly recommend grabbing as many paint chips as you can and holding them against the materials you have selected until you find one that compliments the room.

I don't have any suggestions, but here is a link to a blog post by a professional colorist (or colourist) about using light colors in rooms with little or no natural light. Here is a link that might be useful: Colour Me Happy Link

Do you have the vanity already? Do you know the paint colour on it or can you find a match close to it with a paint deck? The easiest thing is to follow the paint colour suggestions that the paint companies offer on their websites. For example. The vanity looks a little like Benjamin Moore North Sea CC-932. The suggested coordinating colours are: BM Blue Heather - 1620 BM - Weimaraner - AF-155 BM - Meadow Mist - 936 Based on the BM coordinating colours, I think the SW Rain might be a really nice choice. But the best thing is to get some samples and try it in the space.

We are kind of scared of color 😱, our safe option is Classic Grey BM (first pic) but also considering a darker gray Collingwood Benjamin Moore (second pic).