color and gem stone represent Sagittarius. Tones of gray Gray Ash gray Battleship Blue-gray Cadet Charcoal Cinerous Cool Davy's Dim gray gray gray gray gray Eigengrau Feldgrau Jet Marengo Payne's Gunmetal Platinum Silver Slate Taupe gray gray Eigengrau Feldgrau Jet Marengo Payne's Gunmetal Platinum Silver Slate Taupe gray Timberwolf White brown quartz smoke