I'm looking for opinions on what colour my covered ductwork on my ceilings should be. Below are three links to pictures of said ducts. The covered ducts are the boxy drywall structures along the tops of the wall. Picture 1 Picture 2 Picture 3 The ceiling will be a dark gray, while the walls will be sort of an ocean blue. What I'm wondering specifically is... should the sides and bottom of these duct coverings be gray with the ceiling, or blue with the walls? Or maybe the sides blue, and bottoms gray?