Gist NCAR

Summary

Gist NCAR is a sequential colormap from matplotlib. Lightness spans 0.27–0.98, hue sweeps 281° from blue to rose, and order breaks under protan, deutan, and tritan simulation.

NCAR atmospheric ramp.

Perceptual profile (OKLCh)

• Lightness: 0.271 → 0.978 (range 0.707, min 0.271, max 0.978); non-monotonic; midpoint 0.818
• Chroma: min 0.004, max 0.313, mean 0.207
• Hue: 264.1° → 121.6° (span 281.1°), path monotonic-ccw; quadrants: blue, azure, cyan, mint, green, chartreuse, yellow, orange, red, rose
• Endpoint temperature: cool → null
• Perceptual ΔE: total 298.5, mean/step 1.171, max step 6.584, smoothness 0.098, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 247.1; preserves order: no
• Deuteranopia: ΔE total 225.8; preserves order: no
• Tritanopia: ΔE total 247.6; preserves order: no

Related

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