With all the pictures on the interest showing how nice a white on white bathroom is, I am surprised on how they did that. Maybe photoshopped to fool the eye.

Anyway, You tile and tub looks slightly off white, not bright white like your walls.
I would paint the walls a light gray to match the tile floor. ..Curtains to me makes a small space smaller. Oh by the way, I had my tub and wall tiles painted. BIG MISTAKE. Cost me $6,000.. Only to hate it… I had to have a TOTAL Remodel done, Ouch! Learned my lesson.

I am thinking of bordering the tub with grey mosaic tile to break up where the tub meets the wall tile. Could you have a tiler come in and do that for you?

I say, if you want white, do whiteS. I think you have two really good options here if you are able to be OK with a small shift in your white choices.

1) Go with the “problem” color by painting the walls to match the tub and surround color. It appeared white before because of the contrasting wall color. One way to create that same appearance, but maintain a whiter shades is to go with the same color throughout. You could also paint a contrasting small outline border (using color or a different sheen) where the wall meets the surround to lessen any small color difference.

OR

2) Mix your whites with subtle or obvious differences in shades and/or sheens. I like to do this with an uber-subtle ombre mix. The flooring which appears pale greyish-white, and the surround color which seems much warmer – at least on my screen…. I would search for a white or whites between the two. I think perhaps a candlelight white might work.

Barring those, and knowing how I deal with these types of uh-ohs, I would likely throw out the entire white idea and go greige.

Whatever you decide (or have decided), I’m sure it will look amazing! Best wishes on finding your perfect solution!

Personally, I love the contrast of warm and cool tones together! It hasn’t been long enough for the ’80s “matchy matchy” to be cool again, anyway.

What you lost when you replaced the floor tiles was the value contrast. You need a new focal point.

If you regrout the tub tile with gray, you will create a strong grid pattern there. Busy texture equals focal point. Maybe artwork would be a better idea.

Right now, you could get away with almost any decorating scheme:

Pale wood and marble vanity with pastel florals and Victorian rosy cheeked children, sepia prints, or a sunfaded beach theme.

Chrome, glass, warm charcoal, navy, touches of vermillion red. B&W architectural prints, NYC skylines, or old movie stars.

If you keep the existing vanity, you could play with Zen garden inspired accessories like bamboo, river polished stones, sand, bronze, copper.