RGB / CMK / SPOT COLOUR RGB / CMK / SPOT COLOUR! What’s the Difference? RGB (Red, Green, Blue) is used for screen, web, digital CMYK (Cyan, Magenta, Yellow, Black) is used for print SPOT COLOUR (Pantone Matching System – PMS) is used for print 2023-07-20T20:08:00+00:00By marinaduque|Graphic Design| About the Author: marinaduque Hey! My name is Marina, and I'm a Toronto based Web & Graphic Designer, Artist and Illustrator with over 20 years experience.