Glasbey BW

Summary

Glasbey BW is a 256-color categorical colormap from colorcet. Its colors span lightness 0.11–0.98 and chroma 0.00–0.30.

Maximally-distinct on white/black backgrounds.

Perceptual profile (OKLCh)

• Lightness: 0.552 → 0.794 (range 0.873, min 0.109, max 0.982); non-monotonic; midpoint 0.500
• Chroma: min 0.005, max 0.298, mean 0.118
• Hue: 29.2° → 108.4° (span 360.0°), path folded; quadrants: red, violet, green, azure, rose, yellow, blue, orange, cyan, mint, magenta, chartreuse
• Endpoint temperature: warm → warm
• Perceptual ΔE: total 11454.2, mean/step 44.919, max step 101.497, smoothness 0.618, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 9647.6; preserves order: no
• Deuteranopia: ΔE total 9567.8; preserves order: no
• Tritanopia: ΔE total 10228.2; preserves order: no

Related

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