# Bjr

Canonical URL: https://colorcurio.us/colormaps/colorcet.bjr
Source type: Colormap
Type: diverging
Collection: colorcet
Attribution: Kovesi 2015 — "Good Colour Maps: How to Design Them" (arXiv:1509.03700)
License: CC-BY-4.0
Source: https://raw.githubusercontent.com/holoviz/colorcet/main/assets/CET/diverging-linear_bjr_30-55_c53_n256.csv
Tags: diverging, isoluminant-midpoint
Stops: 256

## Summary

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

## Perceptual profile (OKLCh)

- Lightness: 0.427 → 0.633 (range 0.213, min 0.424, max 0.637); non-monotonic; midpoint 0.504
- Chroma: min 0.001, max 0.255, mean 0.134
- Hue: 264.1° → 30.2° (span 132.3°), path folded; quadrants: blue, violet, orange
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 85.5, mean/step 0.335, max step 1.034, smoothness 0.430, speed 0.335

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 61.2; preserves order: no
- Deuteranopia: ΔE total 73.7; preserves order: no
- Tritanopia: ΔE total 77.5; preserves order: no

## Related

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