Naples yellow, also called antimony yellow, can range from a somewhat muted, or earthy, reddish yellow pigment to a bright light yellow, and is the chemical compound lead(II) antimonate. Its chemical composition is Pb(SbO3)2/Pb3(Sb3O4)2. It is also known as jaune d'antimoine. It is one of the oldest synthetic pigments, dating from around 1620. The genuine pigment is toxic, and its use today is becoming increasingly rare. Most paints labelled "Naples yellow" are instead made with a mix of modern, less toxic pigments. The colours of these paints vary considerably from one manufacturer to another.