# Dusk

Canonical URL: https://colorcurio.us/colormaps/cmasher.dusk
Source type: Colormap
Type: sequential
Collection: cmasher
Attribution: Ellert van der Velden — CMasher (10.21105/joss.02004)
License: BSD-3
Source: https://raw.githubusercontent.com/1313e/CMasher/master/src/cmasher/colormaps/dusk/dusk_norm.txt
Tags: perceptually-uniform, sequential
Stops: 256

## Summary

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

Cool-warm sunset sequential.

## Perceptual profile (OKLCh)

- Lightness: 0.000 → 0.852 (range 0.852, min 0.000, max 0.852); monotonic; midpoint 0.481
- Chroma: min 0.000, max 0.161, mean 0.079
- Hue: 0.0° → 4.3° (span 355.7°), path monotonic-ccw; quadrants: blue, azure, cyan, mint, green, chartreuse, yellow, orange, red
- Endpoint temperature: null → warm
- Perceptual ΔE: total 128.1, mean/step 0.502, max step 0.710, smoothness 0.794, speed 0.502

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 97.7; preserves order: yes
- Deuteranopia: ΔE total 102.1; preserves order: yes
- Tritanopia: ΔE total 112.3; preserves order: yes

## Related

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