Study. Cozy study with bookcases and fireplace. Flooring is a ceruse wood finish, and they used ROMA's LowCer stain, Biocalce Classico, Terramare Velatura, and Peter Block Architects and Interior Designer, Beth Webb Interiors.
I've always loved the idea of grey painted rooms, but I never really want to go through with it because of the potentially "drab" or "depressing" aspect of it. BUT! Warm lighting and warm accent colours like this might solve that problem!
This house was featured in a magazine many years ago and I've saved the article in my inspiration folder (pre-Pinterest). I copied the wall color, fireplace and screen among other things. I still love this room.