# Arctic

Canonical URL: https://colorcurio.us/colormaps/cmasher.arctic
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/arctic/arctic_norm.txt
Tags: perceptually-uniform, sequential
Stops: 256

## Summary

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

Black→pale-blue, cool sequential.

## Perceptual profile (OKLCh)

- Lightness: 0.000 → 1.000 (range 1.000, min 0.000, max 1.000); monotonic; midpoint 0.559
- Chroma: min 0.000, max 0.143, mean 0.065
- Hue: 0.0° → 0.0° (span 160.4°), path monotonic-cw; quadrants: violet, blue, azure, cyan
- Endpoint temperature: null → null
- Perceptual ΔE: total 100.4, mean/step 0.394, max step 0.528, smoothness 0.805, speed 0.394

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 91.9; preserves order: yes
- Deuteranopia: ΔE total 93.2; preserves order: yes
- Tritanopia: ΔE total 95.3; preserves order: yes

## Related

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