Emerald Green. Going green this season with a rich dark green hue adds a polished statement in a formal dining room, office, or hallway. These grand chairs upholstered in a velvet emerald green bring to mind the color of money and sophistication. Incorporate green in fabrics through bedding, curtains, and pillows. If you decide on using green as your dominant color like for your walls or couch, keep all else neutral to avoid overpowering your room.