standard illuminants

Standard illuminants are predefined light sources used in color measurement and analysis to ensure consistent and comparable results across different devices and conditions. They represent typical lighting environments, like daylight or indoor lighting, with specific spectral qualities. By standardizing the light source, color measurements become reliable, enabling accurate communication and comparison of colors in industries such as printing, textiles, and manufacturing. Essentially, they act as reference “lights” that provide a common baseline for evaluating how colors appear under various lighting conditions.