The walls and ceilings throughout are all PPG (Pittsburgh Paints) Palomino Gray. Trim is PPG White Chip. I've included a lot of pictures so you can see how it changes depending on the time of day and amount/type of light it gets. You can click on the titles to visit the rooms for more info and photos.
The mudroom and laundry built-ins are also Benjamin Moore Simply White.
Remind me how in love with it I am should I get a wild hair 10 years from now ;)