Emergency

Summary

Emergency is a cyclic colormap from cmasher. Lightness spans 0.00–1.00, hue sweeps 227° from azure to yellow, and order holds under all three colorblind simulations.

Cyclic emergency-light cycle.

Perceptual profile (OKLCh)

• Lightness: 0.000 → 0.026 (range 0.998, min 0.000, max 0.998); non-monotonic; midpoint 0.994
• Chroma: min 0.000, max 0.178, mean 0.086
• Hue: 0.0° → 78.4° (span 227.0°), path folded; quadrants: azure, blue, violet, magenta, rose, red, orange, yellow
• Endpoint temperature: null → null
• Perceptual ΔE: total 225.8, mean/step 0.886, max step 1.301, smoothness 0.800, speed 0.886

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 198.3; preserves order: yes
• Deuteranopia: ΔE total 195.5; preserves order: yes
• Tritanopia: ΔE total 218.4; preserves order: yes

Related

• Family: cmasher
• Source: Ellert van der Velden — CMasher (10.21105/joss.02004)
• Similar cyclic maps: Copper (cyclic), Infinity, Seasons
• All colormaps