# Dark2

Canonical URL: https://colorcurio.us/colormaps/colorbrewer.Dark2
Source type: Colormap
Type: categorical
Collection: colorbrewer
Attribution: Cynthia Brewer & Mark Harrower, ColorBrewer 2.0
License: Apache-2.0
Source: https://colorbrewer2.org/
Tags: categorical, colorbrewer, dark, saturated
Stops: 8

## Summary

Dark2 is a categorical colormap from the colorbrewer collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

ColorBrewer 2.0 qualitative 'Dark2' (8-class palette).

## Perceptual profile (OKLCh)

- Lightness: 0.623 → 0.510 (range 0.265, min 0.510, max 0.775); non-monotonic; midpoint 0.619
- Chroma: min 0.000, max 0.232, mean 0.135
- Hue: 166.7° → 0.0° (span 240.6°), path monotonic-ccw; quadrants: mint, orange, violet, rose, green, yellow
- Endpoint temperature: warm → null
- Perceptual ΔE: total 281.3, mean/step 40.191, max step 79.844, smoothness 0.512, speed 1.000

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 176.2; preserves order: no
- Deuteranopia: ΔE total 177.6; preserves order: no
- Tritanopia: ΔE total 291.9; preserves order: no

## Related

- Family: https://colorcurio.us/colormaps/families/colorbrewer
- All colormaps: https://colorcurio.us/colormaps