NIPY Spectral

Summary

NIPY Spectral is a sequential colormap from matplotlib. Lightness spans 0.00–0.92, hue sweeps 360° from magenta to red, and order breaks under protan, deutan, and tritan simulation.

Land-cover-style multi-hue.

Perceptual profile (OKLCh)

• Lightness: 0.000 → 0.845 (range 0.920, min 0.000, max 0.920); non-monotonic; midpoint 0.683
• Chroma: min 0.000, max 0.295, mean 0.200
• Hue: 0.0° → 0.0° (span 360.0°), path monotonic-ccw; quadrants: magenta, violet, blue, azure, cyan, mint, green, chartreuse, yellow, orange, red
• Endpoint temperature: null → null
• Perceptual ΔE: total 345.3, mean/step 1.354, max step 7.924, smoothness 0.092, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 267.1; preserves order: no
• Deuteranopia: ΔE total 249.1; preserves order: no
• Tritanopia: ΔE total 326.0; preserves order: no

Related

• Family: matplotlib
• Source: matplotlib developers
• Similar sequential maps: AFM Hot, Bone, BRG, Cividis, Copper, Cubehelix, Gist Earth, Gist NCAR
• All colormaps