Van Dyke brown

Van Dyke brown, also known as Kasselerde or Kölnerde, is a dark brown color named after the painter Anthony van Dyck. Originally made from peat or earth, the paint was applied as both watercolor and oil paint. Today the pigment is produced by combining asphalt black with iron oxide. This reproduces the color of the original iron oxide-rich soil found in Kassel and Cologne, Germany.