Illuminant D50 is a standard light source used in color science and imaging. It represents a specific type of daylight with a correlated color temperature of approximately 5000 Kelvin. D50 is commonly used in the graphic arts and photography industries to ensure consistent color reproduction under controlled lighting conditions. This illuminant is particularly important for color matching and evaluation, as it provides a neutral reference point. By using D50, designers and printers can achieve more accurate color representation, making it easier to maintain quality across different media and devices.