CB-cyclic

Summary

CB-cyclic is a cyclic colormap from colorcet. Lightness spans 0.30–0.94, hue sweeps 200° from blue to chartreuse, and order breaks under protan, deutan, and tritan simulation.

Perceptual profile (OKLCh)

• Lightness: 0.626 → 0.621 (range 0.634, min 0.303, max 0.938); non-monotonic; midpoint 0.622
• Chroma: min 0.001, max 0.167, mean 0.079
• Hue: 257.1° → 256.9° (span 200.1°), path monotonic-ccw; quadrants: blue, violet, yellow, chartreuse
• Endpoint temperature: cool → cool
• Perceptual ΔE: total 173.3, mean/step 0.680, max step 1.126, smoothness 0.825, speed 0.680

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 172.7; preserves order: no
• Deuteranopia: ΔE total 173.0; preserves order: no
• Tritanopia: ΔE total 157.7; preserves order: no

Related

• Family: colorcet
• Source: Kovesi 2015 — "Good Colour Maps: How to Design Them" (arXiv:1509.03700)
• Similar cyclic maps: CB-tritan cyclic, CET-C1, Colorwheel, Cyclic BGRMB, Cyclic grey, Cyclic MRYBM, Cyclic MYBM, Cyclic RYGCBMR
• All colormaps