# BuGn

Canonical URL: https://colorcurio.us/colormaps/colorbrewer.BuGn
Source type: Colormap
Type: sequential
Collection: colorbrewer
Attribution: Cynthia Brewer & Mark Harrower, ColorBrewer 2.0
License: Apache-2.0
Source: https://colorbrewer2.org/
Tags: sequential, colorbrewer, blue-green, light-start
Stops: 256

## Summary

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

ColorBrewer 2.0 sequential multi-hue 'BuGn' (9-class anchors).

## Perceptual profile (OKLCh)

- Lightness: 0.988 → 0.338 (range 0.650, min 0.338, max 0.988); monotonic; midpoint 0.750
- Chroma: min 0.005, max 0.140, mean 0.084
- Hue: 211.0° → 150.0° (span 65.4°), path monotonic-ccw; quadrants: cyan, mint, green
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 78.1, mean/step 0.306, max step 0.445, smoothness 0.739, speed 0.306

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 69.1; preserves order: yes
- Deuteranopia: ΔE total 69.0; preserves order: yes
- Tritanopia: ΔE total 72.7; preserves order: yes

## Related

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