Viridian

Viridian is a blue-green pigment, a hydrated chromium(III) oxide, of medium saturation and relatively dark in value. It is composed more of green than blue. Specifically, it is a dark shade of spring green, the color between green and cyan on the color wheel. Viridian takes its name from the Latin viridis, meaning "green".

The first recorded use of viridian as a color name in English was in the 1860s (exact year uncertain).