The dye is yellow and purple.

The good life on the Northwest Coast was everywhere dependent on the efficiency of fishing techniques. Even for these sea mammal hunters the mainstay of diet was fish, so that fishing technology was surely the most highly developed aspect of the culture. Weirs, ingenious traps, nets of all kinds, and myriad hooks--each type designed to catch a particular fish under particular conditions--made the harvest possible. (Holm, Spirit and Ancestor, 1987)