CIE Standard Illuminant A is a model of artificial light that represents the color temperature of incandescent lamps. It has a color temperature of approximately 2856 Kelvin, which gives it a warm, yellowish light similar to traditional light bulbs. This standard is used in various fields, including photography and color science, to ensure consistent color reproduction under artificial lighting. The CIE (International Commission on Illumination) developed Standard Illuminant A to provide a reference point for evaluating and comparing the color characteristics of different light sources. It serves as a benchmark for assessing how colors appear under specific lighting conditions, aiding in tasks like color matching and design.