# YlOrBr

Canonical URL: https://colorcurio.us/colormaps/tol.YlOrBr
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, yellow-orange-brown, light-start
Stops: 256

## Summary

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

Sequential yellow→orange→brown.

## Perceptual profile (OKLCh)

- Lightness: 0.993 → 0.357 (range 0.636, min 0.357, max 0.993); monotonic; midpoint 0.771
- Chroma: min 0.034, max 0.177, mean 0.131
- Hue: 107.0° → 41.9° (span 67.0°), path monotonic-ccw; quadrants: chartreuse, yellow, orange
- Endpoint temperature: neutral → warm
- Perceptual ΔE: total 88.5, mean/step 0.347, max step 0.434, smoothness 0.836, speed 0.347

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 77.5; preserves order: yes
- Deuteranopia: ΔE total 73.7; preserves order: yes
- Tritanopia: ΔE total 79.6; preserves order: yes

## Related

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