Large Sofa Pillows What Color Should I Paint My Living Room?

What color should I paint my Living Room? - large sofa pillows

I have a red / pink fuchsia sofa, accent pillows in blue and chocolate brown. My boyfriend wants blue paint on the walls. The room is quite large with a good amount of sunlight, but in a very dark, almost .... I want to keep the blue, but I have no idea of the shadow. Help?