The colors we see are found in a very narrow range of wavelengths along the visible spectrum of light. These wavelengths range from about 400 nm at the indigo end to about 700 nm at the red end of the spectrum. Look at the visible spectrum of light. A Full Palette Artists recognize the primary colors as red, yellow, and blue. These are pure colors that cannot be created by mixing any other colors.
Complementary colors are directly across from one another on the color wheel.
However, the scientific palette of colors differs slightly from the artistic. The spectrum breaks down into the primary colors of red, green, and blue, or additive colors. Mixing these three colors in equal amounts produces white. This color system, known by the initials RGB, is used in computer monitors and television sets. Dots of red, green, and blue create the image.