Glasbey

Summary

Glasbey is a 256-color categorical colormap from colorcet. Its colors span lightness 0.22–0.98 and chroma 0.04–0.30.

256-class auto-distinct categorical, both-bg-safe.

Perceptual profile (OKLCh)

• Lightness: 0.552 → 0.422 (range 0.763, min 0.216, max 0.979); non-monotonic; midpoint 0.475
• Chroma: min 0.036, max 0.300, mean 0.131
• Hue: 29.2° → 270.9° (span 360.0°), path folded; quadrants: red, violet, green, azure, rose, yellow, cyan, blue, mint, orange, magenta, chartreuse
• Endpoint temperature: warm → cool
• Perceptual ΔE: total 10917.1, mean/step 42.812, max step 99.227, smoothness 0.567, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 8997.6; preserves order: no
• Deuteranopia: ΔE total 8634.8; preserves order: no
• Tritanopia: ΔE total 9244.8; preserves order: no

Related

• Family: colorcet
• Source: Kovesi 2015 — "Good Colour Maps: How to Design Them" (arXiv:1509.03700)
• Similar categorical maps: Glasbey BW, Glasbey category10, Glasbey cool, Glasbey (dark bg), Glasbey HV, Glasbey (light bg), Glasbey warm
• All colormaps