RGB and CMYK are two formats for creating colors. RGB is
used for color creation on the screen. It has three basic colors, red, green and blue.
The LEDs on the screen light up according to the color that has to be created. In case
no LED is on the color is black. RGB is called additive as the change in color is due to
the lighting up of LEDs
In case of printing of paper, the
medium is black in color, CMYK or Cyan, Magenta, Yellow, Key or black is used to create
colors on paper. CMYK is called subtractive, as when color is added, the brightness from
the paper is reduced. Here there is a special ink for black because using the other
three colors together to create black is a waste of
ink.
Understanding the difference between RGB and CMYK is
important if you want to print something and achieve colors as close as what you want
without wasting resources.
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