What is ΔE00?

ΔE2000 measures how different two colours look to the human eye — the lower the number, the closer the match. It's measured in CIELAB, a colour scale built so equal steps look like roughly equal differences, under D65: the agreed standard for “average midday daylight,” so colours are always compared in the same neutral lighting. Zero means identical; about 1 is the smallest difference a trained eye can notice.

< 1.5 close match  ·  < 3.5 good  ·  < 7 approximate  ·  ≥ 7 best reachable

Scores above ~2.5 indicate the target sits at or beyond what this palette can physically mix. The hex values on screen are often more saturated than the actual paint.

ΔE at a glance