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I recently did a primarily white bathroom, but it was a smallish hall bathroom. 4x8 white subways with white grout and white quartz niche shelves in the tub/shower. Basically everything white in the bathroom except the floor which is blue hexagons. Even the vanity is white with a white quartz top (Cambria White Cliff, which was the closest shade of white quartz that I could find to blend with Daltile's Arctic White tile). I wanted a sea of white. I even did a white shower curtain but it's a chunky waffle weave so it adds some texture. BM chantilly lace white walls and ceiling.

I was doing a small hall bath though and wanted it to look clean and bright and maybe a bit bigger. And I wanted the floor to be the star since I love the shade of blue and the hex shape. But really only you know if it's going to be too much white for your taste. I admit I got a little worried about there being too much white during the process but I stuck to my all white vision throughout and am happy with the final outcome. I don't find it to be too much white, but perhaps some people might. I did add some art to a couple walls (white frames with white matting and blue subject matter) but I'm still deciding if I like having the art up or prefer just plain white walls.

Here's my sea of white (without the art):