What are some good accent colors for a bathroom that has white, dark blue and light blue?

Definitely a beige or tan. :)

The "tangent" colors - yellow family.

Because you have 2 blue dominant colors that I can't see, if the colors are close to Egyptian Blues that they used then you can use alot of the dominant golds, reds, greens, and blues that they used. If the Blues are more dull in color, you would need to draw out the colors with a subtle color like yellow or beige as suggested by others. If the room is small, be careful. Too much color crowding will make the room appear small and messy. You might want to accent the walls with some simple orchid pictures in a gold frame. Use simple white cloth items with blue or beige trim. For a large room, color must be evenly spread around the room. Good luck!

You can put just about anything with those colors depending on the look you want. Yellow looks nice with blue and white and is very cheerful. Greens work too and are more calming. If you want to jazz it up and add some pizazz use orange, red or black accents. Towels, candles, vases, photo frames, trash can, flowers can all add that punch of color. Experiment and see what suits your eyes.

Yellow--but make sure that you include something that has yellow, blue and white in it to pull your color scheme together....maybe a Mexican pottery vase, pitcher or shallow bowl for rolled towels. New towels for the bath go a long way towards adding color to a small bathroom. Yellow and blue is also a country French style, so you might research that online for some ideas. Or, you could stay with the colors you already have (i.e. don't add anything), and go for an Asian theme by adding a few blue and white Chinese pottery pieces and framed prints.

Peach might be pretty or a charcoal grey.

if u have dark blue walls , u could cordinate with orange (bright/ pumkin) ,white and ligth blue accents, if u want to cosige all three u could do that also ,if ur going with 1 u must considering using brigth lights being that a adrk color would olny make ur bathroom smaller ,if u choose 2 then u'd be done well just use less of the white and darker blue

Add a little bit of black; there should always be a little bit of black in every room. Maybe as a picture frame, a mirror frame, decorative containers or maybe even a small piece of furniture depending on the size of your bathroom. It adds a bit of sophistication to a room.

Rich, deep yellow.