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Delta E
How different two colors look (ΔE 2000).
What it does
How different two colors look to the eye, as a single number: the Delta E (ΔE). Useful to check a brand color in print or on screen, a monitor calibration, two grades.
- ΔE 2000 (CIEDE2000): today’s formula, closest to the eye. ΔE 94: the graphic arts formula. ΔE 76: the simple distance in Lab, which exaggerates gaps in saturated colors.
- Rough guide: under 1 invisible; 1 to 2 visible up close; 2 to 3.5 visible; 3.5 to 5 clearly; above 5, two different colors.
- Computed in Lab with the D65 white (the white of sRGB screens). Tolerances agreed with a printer or a client always come first.
Free, no account, nothing is sent: it runs in your browser, even offline.
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