Sinebow

Summary

Sinebow is a cyclic colormap from d3. Lightness spans 0.51–0.87, hue sweeps 360° from red to rose, and order breaks under protan, deutan, and tritan simulation.

Sinusoidal hue cycle.

Perceptual profile (OKLCh)

• Lightness: 0.659 → 0.659 (range 0.366, min 0.508, max 0.875); non-monotonic; midpoint 0.732
• Chroma: min 0.122, max 0.278, mean 0.222
• Hue: 26.1° → 26.1° (span 360.0°), path monotonic-cw; quadrants: red, orange, yellow, chartreuse, green, mint, cyan, azure, blue, violet, magenta, rose
• Endpoint temperature: warm → warm
• Perceptual ΔE: total 238.0, mean/step 0.933, max step 2.101, smoothness 0.509, speed 0.933

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 183.5; preserves order: no
• Deuteranopia: ΔE total 170.0; preserves order: no
• Tritanopia: ΔE total 199.9; preserves order: no

Related

• Family: d3
• Source: Mike Bostock — d3-scale-chromatic
• All colormaps