Hi,

There are several options to consider:

Benjamin Moore Colors

Fairview Taupe HC-85
http://www.myperfectcolor.com/en/color/6025_Benjamin-Moore-HC-85-Fairview-Taupe

Kingsport Gray HC-86
http://www.myperfectcolor.com/en/color/6026_Benjamin-Moore-HC-86-Kingsport-Gray

Ashley Gray HC-87
http://www.myperfectcolor.com/en/color/102939_Benjamin-Moore-HC-87-Ashley-Gray

Revere Pewter HC-172
http://www.myperfectcolor.com/en/color/102897_Benjamin-Moore-HC-172-Revere-Pewter

Edge Comb Gray HC-173
http://www.myperfectcolor.com/en/color/102898_Benjamin-Moore-HC-173-Edgecomb-Gray

Also consider the variations of lighting in your bathroom and vanity marble. These colors can guide you into your final selection. It is best to sample all color by using painted boards from your samples. Move around boards in which is more convenient, versus painting different patches of paint on your walls. Please note this is not a live color consult It is best to sample and go from there.

I hope these colors work out.

Sincerely,

Mary

Oh by the way here is a resource for your color tool box.

http://www.myperfectcolor.com/Sample-Applicators-and-Boards/3251.htm

Mary