Oxide of Chromium is an opaque willow green pigment. Though discovered in 1809 it was only made available for artists in 1862. Today, it is commonly used for camouflage clothing.
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.