Naples Yellow Deep is a warm opaque yellow pigment. Originally its name comes from natural deposits in Mount Vesuvius, Naples. Made artificially since the 15th c, it was part of the Old Masters'...
Sepia is a black brown colour. Originally made in the 18th from the ink sacks of cuttlefish, it is now made from a mixture of carbon and umber. It is a highly permanent colour.
Indigo is a deep blue pigment that can range from dark black to pale blue. Originally extracted from plants similar to blue woad used by the ancient Britons, it was synthesised in 1878 in Germany. It...