The PLUS SERIES EXTENDED GAMUT Coated guide features simulations of all 1,729 PLUS SERIES FORMULA GUIDE Colors. Coated colors printed using a seven-color printing process. By adding Orange, Green and Violet (OGV) to the traditional Cyan, Magenta, Yellow and Black (CMYK) inks, you can achieve an acceptable visual match for approximately 90% of the solid colors in the PANTONE MATCHING SYSTEM®.Adding these commonly used inks "extends" the attainable color gamut significantly.อ่านเพิ่มเติม