# PiYG

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

## Summary

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

ColorBrewer 2.0 diverging 'PiYG' (11-class anchors).

## Perceptual profile (OKLCh)

- Lightness: 0.423 → 0.447 (range 0.553, min 0.423, max 0.976); non-monotonic; midpoint 0.975
- Chroma: min 0.001, max 0.212, mean 0.113
- Hue: 355.3° → 140.3° (span 158.4°), path monotonic-cw; quadrants: rose, green
- Endpoint temperature: warm → warm
- Perceptual ΔE: total 144.1, mean/step 0.565, max step 0.888, smoothness 0.817, speed 0.565

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 132.0; preserves order: yes
- Deuteranopia: ΔE total 119.8; preserves order: yes
- Tritanopia: ΔE total 130.2; preserves order: yes

## Related

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