# WhOrBr

Canonical URL: https://colorcurio.us/colormaps/tol.WhOrBr
Source type: Colormap
Type: sequential
Collection: tol
Attribution: Paul Tol, "Colour Schemes" (SRON/EPS/TN/09-002)
License: BSD-3-Clause
Source: https://sronpersonalpages.nl/~pault/
Tags: sequential, cvd-friendly, white-orange-brown, light-start
Stops: 256

## Summary

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

Sequential white→orange→brown (extended-light variant of YlOrBr).

## Perceptual profile (OKLCh)

- Lightness: 1.000 → 0.357 (range 0.643, min 0.357, max 1.000); monotonic; midpoint 0.771
- Chroma: min 0.000, max 0.177, mean 0.129
- Hue: 0.0° → 41.9° (span 101.2°), path monotonic-cw; quadrants: chartreuse, yellow, orange
- Endpoint temperature: null → warm
- Perceptual ΔE: total 98.9, mean/step 0.388, max step 0.936, smoothness 0.713, speed 0.388

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 87.5; preserves order: yes
- Deuteranopia: ΔE total 83.6; preserves order: yes
- Tritanopia: ΔE total 81.5; preserves order: yes

## Related

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