Colors types in computer

 

1. RGB Color Model:

   • Definition: RGB stands for Red, Green, Blue. It is an additive color model where colors are represented by varying intensities of red, green, and blue light.
   • Usage: RGB is used extensively in displays, monitors, digital cameras, and computer graphics. Each pixel on a screen is composed of combinations of these three primary colors to produce a wide range of colors visible to the human eye.
   • Representation: Colors are typically expressed as a combination of three values ranging from 0 to 255 for each color channel (8-bit per channel), where (0, 0, 0) represents black and (255, 255, 255) represents white.

2. CMYK Color Model:

   • Definition: CMYK stands for Cyan, Magenta, Yellow, Black (Key). It is a subtractive color model primarily used in color printing.
   • Usage: CMYK is used in the printing industry where colors are created by subtracting varying amounts of cyan, magenta, yellow, and black inks onto paper. It's based on the principle that each ink absorbs or subtracts light reflected off the paper surface.
   • Representation: Colors are represented as a combination of percentages (0% to 100%) for each ink color. For example, 0% CMYK is white, and 100% of all CMYK colors gives a dark brownish black.

These two color models serve different purposes: RGB for electronic displays where light is emitted, and CMYK for print media where ink absorbs light. Understanding these models is essential for ensuring accurate color representation in digital content creation, design, and printing processes.