The three primary colors of light are red, green, and blue. These colors are fundamental because they cannot be created by mixing other colors of light, and by combining them in various ways, all other colors of visible light can be produced. When all three are mixed together in equal intensities, they create white light. This system is known as additive color mixing, which is used in technologies like computer and TV screens

. In summary:

• Primary colors of light: Red, Green, Blue (RGB)
• Mixing two primaries produces secondary colors: cyan, magenta, and yellow
• Mixing all three primaries produces white light

This differs from the traditional primary colors of pigments (used in painting), which are red, yellow, and blue, but for light, the primary colors are definitively red, green, and blue