CIELABKoordinaten

CIELABKoordinaten, often referred to as CIELAB or L*a*b*, is a color space designed by the International Commission on Illumination (CIE) in 1976. Its primary goal is to create a perceptually uniform color space, meaning that equal distances in the color space correspond to approximately equal perceived color differences by the human eye. This is a significant improvement over RGB or CMYK, where equal numerical changes do not necessarily result in equal visual changes.

The CIELAB color space is defined by three components: L*, a*, and b*. The L* coordinate represents lightness, ranging from 0 (black) to 100 (white). The a* coordinate represents the green-to-red axis, with negative values indicating green and positive values indicating red. The b* coordinate represents the blue-to-yellow axis, with negative values indicating blue and positive values indicating yellow. This three-dimensional representation allows for a comprehensive description of any perceivable color.

CIELAB is device-independent, meaning its definition is not tied to any specific display or printer technology. This makes it an excellent choice for color management, allowing for consistent color reproduction across different devices and media. It is widely used in various fields, including digital imaging, graphic design, printing, and industrial color matching. The perceptual uniformity also facilitates color difference calculations, enabling precise control and measurement of color variations.