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 Maroon is a dark maroon 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.
Permanent Carmine is a mid-crimson pigment. Highly transparent and permanent, it is a lower cost replacement to genuine Carmine. In Antiquity, Carmine was made from thousands of crushed kermes...
Quinacridone Magenta is a rich deep violet-red colour. It is based on the Quinacridone pigment. The name Magenta comes from a lake colour named in 1859 after the battle in Magenta, Italy.