A tool that shows how colors considered close by the Euclidean metric may not appear similar to the human eye.

Euclidean method is compared with CIEDE2000, which provides a more human-like perception of color similarity.

	Base vs 1	Base vs 2	Base is closer to
Euclid (rgb)
Euclid (hsl)
Euclid (hsv)
CIEDE2000

About:

• Presets 1 and 2 illustrate how the Euclidean distance method inaccurately identifies the closest pair of colors.
• 3 preset shows that both methods struggle to accurately identify similar colors.
• Random button selects three random colors and calculates the metrics for them.
• Smart random button selects three colors where the Euclidean metric clearly fails from a human perspective.
• HSL and HSV are weighted. Weights are: 1.0, 0.5, 0.2.