Purples

Summary

Purples is a sequential colormap from colorbrewer. Lightness falls monotonically from 0.99 to 0.32, hue sweeps 24°, and order holds under all three colorblind simulations.

ColorBrewer 2.0 single-hue sequential 'Purples' (9-class anchors).

Perceptual profile (OKLCh)

• Lightness: 0.989 → 0.318 (range 0.672, min 0.318, max 0.989); monotonic; midpoint 0.708
• Chroma: min 0.003, max 0.173, mean 0.077
• Hue: 308.4° → 296.2° (span 24.5°), path folded; quadrants: violet
• Endpoint temperature: null → cool
• Perceptual ΔE: total 72.6, mean/step 0.285, max step 0.489, smoothness 0.639, speed 0.285

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 69.4; preserves order: yes
• Deuteranopia: ΔE total 69.8; preserves order: yes
• Tritanopia: ΔE total 69.7; preserves order: yes

Related

• Family: colorbrewer
• Source: Cynthia Brewer & Mark Harrower, ColorBrewer 2.0
• Similar sequential maps: Blues, BuGn, BuPu, GnBu, Greens, Greys, Oranges, OrRd
• All colormaps