Gnuplot2

Summary

Gnuplot2 is a sequential colormap from matplotlib. Lightness spans 0.00–0.97, hue sweeps 206° from blue to chartreuse, and order breaks under protan, deutan, and tritan simulation.

Gnuplot variant.

Perceptual profile (OKLCh)

• Lightness: 0.000 → 0.968 (range 0.968, min 0.000, max 0.968); non-monotonic; midpoint 0.497
• Chroma: min 0.000, max 0.313, mean 0.212
• Hue: 0.0° → 109.8° (span 205.7°), path monotonic-cw; quadrants: blue, violet, magenta, rose, red, orange, yellow, chartreuse
• Endpoint temperature: null → warm
• Perceptual ΔE: total 161.5, mean/step 0.633, max step 2.739, smoothness 0.000, speed 0.633

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 151.2; preserves order: no
• Deuteranopia: ΔE total 152.8; preserves order: no
• Tritanopia: ΔE total 126.0; 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