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Glossary keyword - RGB Color Model

RGB Color Model

RGB Color Model is a method of representation of colors in electronic devices such as televisions, cameras, and computer monitors. RGB stands for red, green, and blue. It is by using these three primary colors that millions of new color variations can be created from. In web design, the RGB model is used as a standard tool. The primary use of this model is to display digital images. Cameras use RGB sensors to create images with balanced exposure. This model is also employed by scanners to convert documents into images in a virtual format.

How Does RGB Color Model Work?

In computer graphics, a three-point coordinate system – (R, G, B) is used. The three primary colors – red, green, and blue are separate components. These are superimposed in different intensities to produce a variety of colors. The RGBs are additive colors. It implies that light is the primary source of these colors. There are subtractive color models as well. CMYK is an example of this. The intensity of each primary color ranges from 0-255. Zero intensity gives the darkest color – black. As a result, it is possible to come up with 16,777,216 different colors.


RGB is the most famous color model in the industry. This additive model is a popular choice as most applications and platforms support it. No transformation procedures are required to create data on the screen. Moreover, it’s computationally practical and easy to use.


The model is not perfect for color identification. The colors don’t always exhibit uniformly because different devices make use of different LEDs. Same color coordinates will appear differently in a laptop and a smartphone. Printing systems employ the CMYK color model. As a result, files prepared with the RGB color model print out with different colors. This is by far the most significant disadvantage of using the RGB model. 


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