Asymmetric Earth Tones

Summary

Asymmetric Earth Tones is a sequential colormap from paraview. Lightness spans 0.27–0.97, hue sweeps 263° from violet to red, and order holds under all three colorblind simulations.

Asymmetric earth tones ramp by Samsel.

Perceptual profile (OKLCh)

• Lightness: 0.272 → 0.331 (range 0.702, min 0.272, max 0.975); non-monotonic; midpoint 0.898
• Chroma: min 0.017, max 0.106, mean 0.057
• Hue: 277.8° → 14.8° (span 263.0°), path monotonic-ccw; quadrants: violet, blue, azure, cyan, mint, green, chartreuse, yellow, orange, red
• Endpoint temperature: cool → warm
• Perceptual ΔE: total 160.6, mean/step 0.630, max step 1.327, smoothness 0.624, speed 0.630

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 147.6; preserves order: yes
• Deuteranopia: ΔE total 144.1; preserves order: yes
• Tritanopia: ΔE total 146.8; preserves order: yes

Related

• Family: paraview
• Source: ParaView / VTK — Kitware (presets curated by Moreland, Samsel et al.)
• Similar sequential maps: 2hot, Black, Blue & White, Black-Body Radiation, Black, Orange & White, Blue-Green-Orange, ERDC Rainbow (bright), ERDC Rainbow (dark), Haze
• All colormaps