Recently I have come across a couple pieces of furniture covered in a beautiful robin's egg blue colour. I think this this could actually work as a great neutral tone in a living room space (or any room for that matter) as you can combine it with many colours and change the look of the room with the addition of a few coloured cushions.
I particularily like this Greg Hatton Hand-made Chair as seen on Decor8 today.
Another great example was a sofa seen in my most recent "Home I Love" blogpost.
It also looks great on walls.
Or as just a pop of colour in a white room.