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.
Perylene Green is a dark transparent green pigment. Undiluted, it is almost a black colour. Perylene is a modern synthetic organic pigment and was first available in the late 1950s.
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.
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.