I purchased this rug to help protect bare feet from our Trex type decking that gets extremely hot from the sliding glass door reflecting light on it. The 'anthracite' looks blue grey in person, just what I was looking for. The rug feels like a nice quality outdoor rug, I wouldn't use it indoors unless that's what you're looking for. I can't speak to long term durability, we've only had the rug a few weeks, but it seems to be holding up well so far. Overall, happy with the purchase!