Bought the blue and yes, they are very grey with a hint of smokey blue.  Easy to put together.  Packaged well, but one came out with some permanent wrinkles.  One chair had an area where the chrome was slightly smudged/distressed, but I was able to hide it.  Material had a few spots on the chairs, but nothing overly oblivious.  Believe you could waterproof with a good spray if necessary since the fabric is a poly blend.