Session: Marine Corrosion and Performance Issues for Materials and Coatings
Precision in Perception: Revisiting Coating Color Evaluations by Comparing ΔE76 and ΔE00 Results (C2026-00362)
Monday, March 16, 2026
9:30 AM - 10:00 AM Central
Location: 361 DE
Earn .5 PDH
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Color can be a defining feature of a brand, an aesthetic choice, or serve specific functions. Evaluating how color is perceived overtime due to degradation via UV light or other phenomenon is important in determining a coatings lifecycle and when it may need to be reapplied, especially in harsh marine enivronments. Historically scientists have been developing ways to mathematically quantify how different colors are based on specific values intrinsic to the color since the 1930s. A major breakthrough in this field was the development of the ΔELAB formula developed in 1976, which takes the Euclidean distance between two points in the CIE L*a*b* color space. This allowed for a standardized way to track color change overtime or the difference between various colors all while being easy to conceptualize. Overtime this formula was updated, resulting in the newest formula ΔE2000. Despite being over 20 years old, this formula has not gotten as wide a use as the previous 1976 version, perhaps due to the complexity associated with its calculations. The research presented below will show how the use of this updated formula can help provide a more accurate understanding of color change over time from some historical marine coating data sets.
