# Bone

Canonical URL: https://colorcurio.us/colormaps/matplotlib.bone
Source type: Colormap
Type: sequential
Collection: matplotlib
Attribution: matplotlib developers
License: matplotlib (BSD-derived)
Source: https://github.com/matplotlib/matplotlib/blob/main/lib/matplotlib/_cm.py
Tags: light-end, medical
Stops: 256

## Summary

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

Blue-tinged grayscale; medical/relief.

## Perceptual profile (OKLCh)

- Lightness: 0.000 → 1.000 (range 1.000, min 0.000, max 1.000); monotonic; midpoint 0.562
- Chroma: min 0.000, max 0.057, mean 0.036
- Hue: 0.0° → 0.0° (span 75.7°), path monotonic-cw; quadrants: violet, magenta
- Endpoint temperature: null → null
- Perceptual ΔE: total 89.3, mean/step 0.350, max step 0.481, smoothness 0.849, speed 0.350

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 82.3; preserves order: yes
- Deuteranopia: ΔE total 81.6; preserves order: yes
- Tritanopia: ΔE total 86.6; preserves order: yes

## Related

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