# YlOrRd

Canonical URL: https://colorcurio.us/colormaps/colorbrewer.YlOrRd
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, yellow-orange-red, light-start
Stops: 256

## Summary

YlOrRd 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 'YlOrRd' (9-class anchors).

## Perceptual profile (OKLCh)

- Lightness: 0.988 → 0.381 (range 0.606, min 0.381, max 0.988); monotonic; midpoint 0.753
- Chroma: min 0.065, max 0.228, mean 0.160
- Hue: 107.5° → 15.6° (span 92.0°), path monotonic-ccw; quadrants: chartreuse, yellow, orange, red
- Endpoint temperature: warm → warm
- Perceptual ΔE: total 91.1, mean/step 0.357, max step 0.563, smoothness 0.747, speed 0.357

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 78.2; preserves order: yes
- Deuteranopia: ΔE total 66.5; preserves order: yes
- Tritanopia: ΔE total 83.5; preserves order: yes

## Related

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