# RdPu

Canonical URL: https://colorcurio.us/colormaps/colorbrewer.RdPu
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, red-purple, light-start
Stops: 256

## Summary

RdPu 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 'RdPu' (9-class anchors).

## Perceptual profile (OKLCh)

- Lightness: 0.981 → 0.312 (range 0.669, min 0.312, max 0.981); monotonic; midpoint 0.711
- Chroma: min 0.010, max 0.221, mean 0.136
- Hue: 48.6° → 310.2° (span 98.4°), path monotonic-ccw; quadrants: orange, red, rose, magenta
- Endpoint temperature: warm → cool
- Perceptual ΔE: total 87.6, mean/step 0.344, max step 0.474, smoothness 0.852, speed 0.344

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 74.0; preserves order: yes
- Deuteranopia: ΔE total 75.0; preserves order: yes
- Tritanopia: ΔE total 89.1; preserves order: yes

## Related

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