The room already has a nice beige color from previous owners. We don't hate it but we have been wanting to paint our living room walls gray. I have been wanting a Benjamin Moore "Stonington Gray" or "Coventry Gray". Other options we are considering are "Revere Pewter" (too greige?), "Thunder", "Silver Dollar", "Delray Gray". I 'm hesitant because the couch we purchased is already a light gray and am worried it might blend in/clash with the wall. Would an accent wall behind the couch in a darker gray work in this particular space? I will be decorating with turquoise curtains and yellow pillow covers. We want the end result to be modern and fun yet inviting and livable.