Viridian is a transparent emerald green colour. Named after the Latin for green 'viridis', it was first made in Paris by colourist Binet in 1838 as a replacement for the deadly Emerald Green.
Perylene Red is a light red pigment. Perylene is a modern synthetic organic pigment and was first available as a dye around 1912 before becoming available as an artist pigment in the late 1950s.
Gold Ochre is an earth pigment, and as such, has been used since prehistoric times. It is a warm brownish yellow colour. It has been made synthetically since the 1920s.
Ultramarine Violet is a rich purple colour. It is a derivation of French Ultramarine, a synthetic pigment created in 1828 by French chemist Guimet as an alternative to genuine Ultramarine.
