How to Use the CIEDE2000 Color Difference (Delta E) Calculator
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1
Enter or pick Color 1 (Reference).
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2
Enter or pick Color 2 (Sample).
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3
View the exact Delta E (ΔE00) value and perceptual match rating.
Practical Example & Use Case
Common Real-World Scenario
Verifying that a printed brand logo (#0A84FF) matches screen mockup (#007AFF) within acceptable tolerance (ΔE < 2.0).
Technical Notes & Limitations
Browser Engine Architecture
Calculates CIE ΔE 2000 in standard D65 illuminant 2° observer conditions. Substrate texture is not simulated.
Frequently Asked Questions
What is a good Delta E score?
ΔE < 1.0 is imperceptible to human eyes; 1.0–2.0 is perceptible through close observation; > 3.5 is an obvious color mismatch.
Why use CIEDE2000 over CIE76?
CIEDE2000 corrects for non-uniformities in human eye perception across blue/purple, saturation, and lightness axes.