What color paint would look best with a bluish silver comforter and bluish silver/brown pillows?

I think a deeper blue might look good. Go to this site and consider "Poolside".
http://www.sherwin-williams.com/visualizer/index.html
Something like this:
http://www.flickr.com/photos/_sallytv/2056976306/
or this
http://www.aplaceintimebandb.com/images/rooms/blue1.JPG
If you don't want too much blue, try a silvery gray or a taupe.

The Pillows -"One Life"