What principle does the RGB model rely on?

The RGB model relies on the principle of mixing colors of light to create a wide spectrum of colors. In this model, the primary colors of light—red, green, and blue—are combined in various intensities to produce different colors. For instance, when red and green light are mixed together in equal amounts, they produce yellow. Adjusting the levels of each of the three colors allows for the creation of millions of different color combinations, making the RGB color model fundamental in fields such as digital imaging, video display technology, and computer graphics.

This characteristic of the RGB model emphasizes the additive nature of color mixing with light, contrasting with subtractive color mixing typically used in painting and printing, where pigments absorb light. Understanding this principle is essential for anyone involved in graphic design, web development, or video production, as it provides the foundational knowledge necessary to accurately reproduce colors on digital displays.