Pointillism Pointillism is analogous to the four-color CMYK printing process used by some color printers and large presses that place dots of Cyan (blue), Magenta (red), Yellow, and Key (black). Televisions and computer monitors use a similar technique to represent image colors using Red, Green, and Blue (RGB) colors. If red, blue, and green light (the additive primaries) are mixed, the result is something close to white light (see Prism (optics)). Painting is inherently subtractive, but Pointillist colors often seem brighter than typical mixed subtractive colors. This may be partly because subtractive mixing of the pigments is avoided, and partly because
Color by coordinates, which in 1931 were also named in global agreement with internationally agreed color names like mentioned above (red, orange, etc.) by the International Commission on Illumination. The RGB color space for instance is a color space corresponding to human trichromacy and to the three cone cell types that respond to three bands of light: long wavelengths, peaking near 564–580 nm ("red"); medium-wavelength, peaking near 534–545 nm ("green"); and short-wavelength light, near 420–440 nm ("blue"). There may also be more than three color dimensions in other color spaces, such as in the CMYK color model, wherein one of the