CIE 1976 color difference (Delta E)

CIE 1976 color difference, known as Delta E, is a way to measure how similar or different two colors are. It uses a mathematical formula based on human perception of color differences in a color space designed to reflect how we see colors. A smaller Delta E indicates the two colors are very similar, while a larger value means they are more different. This measurement helps manufacturers and designers ensure color consistency across products, ensuring that colors match as intended, and provides a standardized way to quantify visual differences in colors.