Hello,

Yes, you can definitely find a warm gray that would work with the existing colors in your bathroom.

You'll want to look for a gray that doesn't have a blue or pink undertone, if you'd like a completely neutral look. If you're looking at paint sample strips or chips, hold the color you're considering up against something you know to be a true gray -- you'll be able to see what the undertone is. Any gray with a blue or pink undertone, will look much more so in a room of warm neutrals. It's really a matter of personal taste, but for a true neutral gray look, I would lean toward the warm grays.

Here are light and dark warm gray paint suggestions to test in the room:

Match of Restoration Hardware Silver Birch
http://www.myperfectcolor.com/en/color/76337_Restoration-Hardware-Silver-Birch

Benjamin Moore Doily CSP 130
http://www.myperfectcolor.com/en/color/378812_Benjamin-Moore-CSP-130-doily

Benjamin Moore Sea Salt CSP-95
http://www.myperfectcolor.com/en/color/378805_Benjamin-Moore-CSP-95-sea-salt

Match of Sherwin Williams Gray Area SW7052
http://www.myperfectcolor.com/en/color/26949_Sherwin-Williams-SW7052-Gray-Area

Match of Sherwin Williams Cityline SW1159
http://www.myperfectcolor.com/en/color/66877_Sherwin-Williams-SW1159-Cityline

Thank you so much for your question! Please feel free to ask follow up questions, or share a photo if you'd like.

Diana