The CIE color space is a standardized way to represent colors based on human vision. Developed by the International Commission on Illumination (CIE) in 1931, it provides a mathematical model that describes how colors can be perceived by the human eye. This model uses three coordinates, typically labeled as X, Y, and Z, to define colors in a way that is consistent across different devices and lighting conditions. One of the most common representations within the CIE color space is the CIE 1931 color space, which maps colors onto a two-dimensional graph called the chromaticity diagram. This diagram helps visualize the range of colors visible to the human eye and serves as a foundation for various color systems used in industries like printing, photography, and digital displays.