Sally conjuring colours Steve Burrow, 29 July 2009 Festival of British Archaeology 2009More photos from finished events... This time Sally demonstrating dyeing with natural dyes.The orange comes from madder, the yellow from weld, blue from woad, and green is a mix of woad and weld. Dr Steve Burrow Head of Archaeology View Profile Comments - (1) Comments are currently unavailable. We apologise for the inconvenience. Deb Glennie 31 July 2009, 11:48 Fab colours achieved, you get a real idea of the colours available to our Iron age ancestors-not just the muddy masses