But over time, the plant was supplanted by indigo from Asia and, later, artificial dyes, said Chantal Armagnac, author of “Le Pastel en Pays de Cocagne,” a book about woad and its history in ...

Imani Perry’s new book, Black in Blues: How a Color Tells the Story of My People, begins with a memory of blue: A missing ...

In fact, in Medieval times, blue was considered a warm color, with bodies of water depicted in green up until the fifteenth century. Fast forward, dyeing began using woad and later indigo ...

woad offered blue and yellow was derived from weld. Plants were soaked in hot water and wool was immersed in the dye bath. Stale urine may have been used as a mordant to fix dyes. Diodorus Siculus ...