L*a*b* → ΔE* Calculator

CIE76 Colorimetric Difference · Batch Pairwise Computation

ΔE* = √[(ΔL*)² + (Δa*)² + (Δb*)²] · OIV-MA-AS2-11
📂 Input File
🎨
Drop your CSV file here or click to browse
Separator: semicolon (;) · Header: Product; L_star; a_star; b_star
Expected CSV format Row 1 (header): Product;L_star;a_star;b_star
Data rows: SampleName;46.1895;59.1456;11.9838 — one sample per row.
Any row with an empty first column is ignored. At least 2 samples are required.
Computing pairwise ΔE* values…
0
Samples
0
Pairs
Min ΔE*
Max ΔE*
Mean ΔE*
🟢 Most Similar Pair
🔴 Most Different Pair
# Sample 1 Sample 2 ΔL* Δa* Δb* ΔE* Perception
ΔE* Perception guide (CIE76 / OIV context) 0 – 1 Not perceptible   1 – 3 Barely perceptible   3 – 6 Clearly perceptible   > 6 Very different