Again, it depends on what else is going on in the room.
I've been thinking that it might be precisely
that dark feeling that you are after -- in that case, you might get away with
Hale Navy, but you should think of it as the inside of a jewel box filled with
pearls -- i.e. almost everything else in the room light. Whites, off-whites,
palest greys, palest beige, pale wood -- you can see in the room below how much the total picture matters.
Q