Horizon
Summary
Horizon is a sequential colormap from cmasher. Lightness rises monotonically from 0.29 to 1.00, hue sweeps 218° from green to magenta, and order holds under all three colorblind simulations.
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