褐色 Kachi iro - the dark indigo color of samurai power suits 勝負服 is the Japanese word for power suit, lucky shirt, lucky underwear, and the dark indigo of these lucky pants I’m wearing today was the color of samurai power suits. 褐色 Kachi iro was the samurai’s favorite armor color during the Kamakura Period (1185 - 1333). The name came from the method used to make this color—hey pounded dyed cloth using a mortar and pestle. This method was called 搗つ, and the almost-black-indigo color it produced c