As some of you know, I've been working on my library for awhile. Bought furniture, a rug, and painted -that is- put primer on the fireplace. And finally hung the Mangelsen! Still have a lot to do but making progress!

I'm wondering if anyone would care to provide a few ideas on paint colors. After MUCH contemplation, I've decided that the paint color behind the art will be BM's Cement Gray (has a blueish tinge when on the wall), but I still need to choose the color for the other 3 walls and the fireplace (and the ceiling).

It sure doesn't LOOK yellow but here is the description- Benjamin Moore 2112-60 Cement Gray. Hex code #cecdcb is a light shade of yellow. 80.78% red, 80.39% green and 79.61% blue.

Do I paint the fireplace the same color as I paint the wall or use a different color? What about a paint color for the angled ceiling? Should the mantel be a different color from the fireplace itself? Should I try to stay monochromatic ? Guidelines that are relevant to this particular situation?

This room faces west, but because of landscaping and the deck, does not get direct sun. There is also a sunlight- yet the room overall tends to be on the darker side.

RUG:

Thanks to everyone for the help!