Earthenware jar with sancai (three-color) glaze in amber, green and cream with blue in a peacock-feather pattern
Sancai, or tri-color wares, were one of the most brilliant innovations of Tang dynasty (618–907) potters. Working with the same clay used to produce white wares, potters added iron and copper oxide colorants to create the typical three-color palette of cream, amber, and olive green. Lead flux made it possible for these colored glazes to fuse to the earthenware body at relatively low kiln temperatures. It also allowed glazes to run, which made them very difficult to control, yet aesthetically appealing.