Glasbey (dark bg)

Summary

Glasbey (dark bg) is a 256-color categorical colormap from colorcet. Its colors span lightness 0.22–0.81 and chroma 0.04–0.30.

Excludes too-dark colours; tuned for dark backgrounds.

Perceptual profile (OKLCh)

• Lightness: 0.552 → 0.804 (range 0.594, min 0.216, max 0.810); non-monotonic; midpoint 0.805
• Chroma: min 0.037, max 0.302, mean 0.133
• Hue: 29.2° → 344.6° (span 360.0°), path folded; quadrants: red, violet, green, azure, yellow, rose, cyan, mint, blue, orange, magenta, chartreuse
• Endpoint temperature: warm → warm
• Perceptual ΔE: total 10248.5, mean/step 40.190, max step 105.127, smoothness 0.581, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 8116.0; preserves order: no
• Deuteranopia: ΔE total 7805.9; preserves order: no
• Tritanopia: ΔE total 8955.9; preserves order: no

Related

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