create a modern living room with a cozy atmosphere use a soft dove gray for the walls and ceiling and a warm medium gray for the floor the bookshelf units and cabinets on either side of the fireplace should be in a rich charcoal gray the sofas and armchairs are upholstered in crisp white with dark brown wooden legs the coffee table armchair and ottomans are a vibrant mustard yellow the fireplace is made of red brick with a sleek black mantel a large flat screen tv is mounted above the fireplace the atmosphere should be warm and inviting with soft natural light filtering through the windows