# Set1

Canonical URL: https://colorcurio.us/colormaps/colorbrewer.Set1
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, bright, saturated
Stops: 9

## Summary

Set1 is a categorical colormap from the colorbrewer collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

ColorBrewer 2.0 qualitative 'Set1' (9-class palette).

## Perceptual profile (OKLCh)

- Lightness: 0.585 → 0.683 (range 0.428, min 0.541, max 0.969); non-monotonic; midpoint 0.730
- Chroma: min 0.000, max 0.229, mean 0.147
- Hue: 27.9° → 0.0° (span 326.7°), path folded; quadrants: red, blue, green, magenta, orange, chartreuse, rose
- Endpoint temperature: warm → null
- Perceptual ΔE: total 389.5, mean/step 48.682, max step 77.605, smoothness 0.716, speed 1.000

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 334.2; preserves order: no
- Deuteranopia: ΔE total 301.7; preserves order: no
- Tritanopia: ΔE total 273.5; preserves order: no

## Related

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