# Horizon

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

## Summary

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

Sunset-toned sequential.

## Perceptual profile (OKLCh)

- Lightness: 0.288 → 1.000 (range 0.712, min 0.288, max 1.000); monotonic; midpoint 0.639
- Chroma: min 0.000, max 0.131, mean 0.079
- Hue: 142.3° → 0.0° (span 217.7°), path monotonic-cw; quadrants: green, mint, cyan, azure, blue, violet, magenta
- Endpoint temperature: warm → null
- Perceptual ΔE: total 104.4, mean/step 0.409, max step 0.478, smoothness 0.920, speed 0.409

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 92.8; preserves order: yes
- Deuteranopia: ΔE total 93.4; preserves order: yes
- Tritanopia: ΔE total 82.5; preserves order: yes

## Related

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