These pavers are made by a local northwest company called Mutual Materials. They are a tumbled paver called Roman Dominion, and the color is a blend of light and dark gray. We've installed many patios with this paver, some with tan in the blend and some with red, but to me nothing feels as natural here in Seattle as the gray blend. The gray blend, tumbled look, and non-directional pattern all lend to this paver feeling like a cobblestone. I'm a big fan.