Please post a picture. It sounds like you need some color. Can you pull out some color from your stone and paint it on your walls in a bolder way? Do you have small samples of your materials that you can take to a local paint store? They may be able to help you. Plus, the Benjamin Moore web site has a section where you can pick a bathroom and play around with different color options. Good luck!

If you have an iphone or android, you can download a color capture app from Benjamin Moore, take a picture of your counter, or vanity and you can see matching or complimentary colors, it's pretty cool

Here is a link that might be useful: Color Capture App