Painting all of your trim white to match the rest of the home is going to make a huge difference in the brightness in the room. The built-ins should be the same white color as the trim. The new color scheme of the room is now light, bright and sophisticated. Different shades of blue work together to create an elegant color scheme. Layering rugs and mix and matching different metals and textures through furniture and fabrics help make the room feel lived in and comfortable.