RGB & CMYK

RGB :
  • RGB is an additive color model in which red, green, blue light are added together in various ways to reproduce a broad array of colors.
  • RGB is an additive because white is the 'additive combination' of all primary colored lights,while black is the absence of light. By mixing varying amounts of red, green, and blue light, you can create most other colors.


  • The main purpose is for the sensing, representation and display of images in electronic systems such as televisions,computers.
  • The RGB color mode is used by light emitting monitors (including cameras, TVs, etc) . A monitor uses very small bands of red, green, and blue light to generate color.

CMYK :
  • CMYK is a subtractive color model used in color printing, and is also used to describe the printing process itself.
  • CMYK refers to cyan, magneta, yellow and key (black).


  • CMYK is based on ink. Superimpose Cyan ink plus Magenta ink plus Yellow ink, and you get black, although this format also encodes Black (K) directly. White is encoded by the absence of any color.
  • By mixing varying amounts of cyan, magenta, yellow, and black inks, you can create most other colors.


RGB & CMYK Examples :