Cinnabar Green or Green cinnabar is a name that designated a green copper tartrate or copper arsenic pigment of the eighteenth century. By the first half of the nineteenth century, the term denoted a composite pigment of chrome yellow and Prussian blue, providing a wide range of hues from dark to light tones. We found nineteenth century formulas for cinnabar green composed of chrome yellow primrose and Prussian blue forming the basis of Rublev Colours Cinnabar Green.