Color Rendering Index (CRI)
December 4th 2025
The CRI (Color Rendering Index) measures how accurately a light source reveals the true colors of objects, on a scale from 0 to 100. A CRI of 100 corresponds to natural sunlight, which offers a full and continuous light spectrum. This reference serves as the benchmark to which the human visual system has long been adapted.
The higher the CRI, the better a light source can reproduce the true colors of objects. High CRI lighting delivers a visual effect that closely resembles natural sunlight. Meanwhile, a low CRI means colors may appear distorted or unnatural, leading to visual misjudgment. A high CRI light is critical to help identify details by restoring their true colors, contours, and textures, significantly improving visual clarity and safety.