Additive Color Model is a color theory model that explains how primary colors of light can be combined to produce a broad array of colors. In this model, the primary colors are red, green, and blue (RGB), and when combined in varying intensities, they create a wide spectrum of colors. The model is based on the principle that adding different wavelengths of light together results in the perception of different colors by the human eye. This model is widely used in electronic displays, such as computer monitors, televisions, and smartphone screens, where pixels emit light in these three primary colors to create the illusion of a full-color image. The additive color model is also employed in stage lighting, where red, green, and blue lights are used to create various color effects. The model's name, additive, comes from the fact that as more light is added, the result gets closer to white; when all three primary colors are combined at full intensity, the result is a bright white light. This is in contrast to the subtractive color model, which is used in print media and is based on the absorption of light. Interestingly, the additive color model is also the reason why we see afterimages in complementary colors when we stare at a bright color for an extended period and then look at a white surface.
RGB, primary colors, light, wavelength, perception
CITATION : "Stephan Trump. 'Additive Color Model.' Design+Encyclopedia. https://design-encyclopedia.com/?E=435912 (Accessed on March 14, 2025)"
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