# Bkr

Canonical URL: https://colorcurio.us/colormaps/colorcet.bkr
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_bkr_55-10_c35_n256.csv
Tags: dark-bg, dark-midpoint, diverging
Stops: 256

## Summary

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

## Perceptual profile (OKLCh)

- Lightness: 0.617 → 0.634 (range 0.390, min 0.244, max 0.634); non-monotonic; midpoint 0.244
- Chroma: min 0.006, max 0.201, mean 0.098
- Hue: 256.3° → 28.9° (span 134.2°), path monotonic-cw; quadrants: blue, violet, orange, red
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 100.0, mean/step 0.392, max step 0.552, smoothness 0.864, speed 0.392

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 85.3; preserves order: yes
- Deuteranopia: ΔE total 95.6; preserves order: yes
- Tritanopia: ΔE total 106.2; preserves order: yes

## Related

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