ΔE Color Difference Calculator
Compute CIE76 color difference ΔE from two RGB colors via sRGB→XYZ→Lab.
Input Data
Input Color1 R.
Input Color1 G.
Input Color1 B.
Input Color2 R.
Input Color2 G.
Input Color2 B.
Results
176.333
CIE76 ΔE (Lab distance).
At a glance:ΔE Color Difference Calculator: enter parameters to compute results; complements related calculators.
Formula
RGB→linear→XYZ→Lab; ΔE = √(ΔL*²+Δa*²+Δb*²).
How to Use
- Enter two RGB sets.
- It returns CIE76 ΔE.
Case Studies
White vs Black → ΔE=100
Distance between Lab(100,0,0) and Lab(0,0,0) is 100.
FAQ
How large is noticeable?
ΔE<1 imperceptible; 1–2 noticeable; >10 obvious.
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References
Content review: Calculatorism Science Team. Formula and numeric tests verified; results for reference only.