Espresso. This color is truly a 'brown' brown. It's undertones are hard to detect, so it is a very strong hue that will easily anchor a larger space. Because of it's solid quality, vibrant accent colors -- such as the teal in this room -- make a great addition because they complement the richness of the brown.
Paint pick: Branchport Brown HC-72 by Benjamin Moore
Or go all out. If you are ready for a big change, this is a good time to paint the entire space in a new fall color. This deep brown sets a backdrop that allows the light furniture to take the forefront.