Indian Red is an opaque red with blue undertones. Originally made of natural red iron oxides found in earth, it is one of the oldest pigments and is favoured for its permanence.
Ultramarine is a rich deep transparent blue. It was created by French chemist Guimet in 1828 as a synthetic but chemically identical replacement for the expensive pigment derived from Lapis Lazuli.
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 Originally made in the 18th from the ink sacks of cuttlefish, it is now made from a mixture of carbon and umber.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.
