# Twilight

Canonical URL: https://colorcurio.us/colormaps/matplotlib.twilight
Source type: Colormap
Type: cyclic
Collection: matplotlib
Attribution: matplotlib (Smith, van der Walt, Hunter et al.)
License: matplotlib (BSD-derived)
Source: https://matplotlib.org/stable/users/explain/colors/colormaps.html
Tags: perceptually-uniform
Stops: 256

## Summary

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

matplotlib default cyclic colormap.

## Perceptual profile (OKLCh)

- Lightness: 0.895 → 0.894 (range 0.646, min 0.249, max 0.895); non-monotonic; midpoint 0.249
- Chroma: min 0.008, max 0.158, mean 0.089
- Hue: 324.0° → 325.7° (span 192.4°), path monotonic-cw; quadrants: azure, blue, violet, magenta, rose, red, orange
- Endpoint temperature: neutral → neutral
- Perceptual ΔE: total 179.1, mean/step 0.702, max step 0.875, smoothness 0.841, speed 0.702

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 158.9; preserves order: no
- Deuteranopia: ΔE total 157.2; preserves order: yes
- Tritanopia: ΔE total 180.3; preserves order: yes

## Related

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