Pewter is a shade of gray that is darker than silver and less saturated than charcoal. It is a cool-toned color that can be described as a blueish-gray with a silvery shimmer. Pewter is a metal alloy of tin with copper and antimony, so it looks a lot like silver. The hex code for pewter is #E9EAEC. Pewter paint colors can vary, but Benjamin Moores Pewter is a muted shade of blue-gray.