What three colors make up all the colors in the world?

The correct answer is that all the colors in the world can be created through the combination of red, blue, and green. This is based on the additive color model, which is used in various applications such as computer screens and televisions. In this model, different intensities of these three primary colors can be combined in various ways to produce a broad spectrum of colors. When all three colors of light are combined at full intensity, they produce white light.

This additive color theory is foundational in understanding how colors are perceived in light-based systems, differentiating it from the subtractive color models used in paint and ink. In subtractive models, using colors like cyan, magenta, and yellow allows for color mixing to create a wide range of colors, but in the context of light and screens, red, blue, and green remain the primary colors from which all other colors can be derived.