Jacob Christoph Le Blon, or Jakob Christoffel Le Blon, (2 May 1667 – 16 May 1741) was a painter and engraver from Frankfurt who invented the system of three- and four-colour printing, using an RYBK color model similar to the modern CMYK system.[2] He used the mezzotint method to engrave three or four metal plates (one each per printing ink) to make prints with a wide range of colours.
His methods helped form the foundation for modern colour printing.