You can always go neutral for the main pieces such as flooring and vanity. Then, bring in her colors with towels and accents. That way if she changes her colors later, you can easily coordinate the bath as well.

What about a classic black and white bathroom (mostly white tiles, but with black accents) that has the walls painted in either turquoise or mint green and the towels and other accents in those colors. As Durpetti Interiors has suggested, that way your daughter can change colors as she grows older, and it will only involve painting the walls and buying new towels.

Alternately, you could do something funky and retro:

Or very modern and bright:

thank y'all. feeny i love the idea thank you

I agree with keep the bath neutral , whatever that might be.. in keeping with the style of rest of house.Make sure it flows with all the rest, not a different entity on its own. Anything beigy, creamy, white for example) .I would concentrate on the color with shower curtains, towels, rugs, etc. I made the mistake of being too playful with my young sons' bathroom when I built my first house.. way too many specific permanent items ( tiles, counters), in colors that might not suit everyone ( resale() or them as they grew.Enjoy!

Soft aqua like the color of sea glass! Dark - black mirror frame and cabinet and lots of white.