Mandy from Fabric Paper Glue transformed their formerly green guest room using a medium gray Valspar Granite Dust. I love the mix of patterns she chose in here, and I also like the warmth the wood shades bring to the room. Mandy mentioned this may one day become a nursery, and I think this color would look perfect for that too!
Looking for similar paint colors? You might like these (click the image to see full size):