ERDC Rainbow (bright)

Summary

ERDC Rainbow (bright) is a sequential colormap from paraview. Lightness spans 0.49–0.86, hue sweeps 254° from violet to red, and order holds under all three colorblind simulations.

ERDC SciVis bright rainbow.

Perceptual profile (OKLCh)

• Lightness: 0.494 → 0.651 (range 0.368, min 0.494, max 0.861); non-monotonic; midpoint 0.826
• Chroma: min 0.127, max 0.274, mean 0.184
• Hue: 279.4° → 25.0° (span 254.4°), path monotonic-ccw; quadrants: violet, blue, azure, cyan, mint, green, chartreuse, yellow, orange, red
• Endpoint temperature: cool → warm
• Perceptual ΔE: total 180.2, mean/step 0.707, max step 1.176, smoothness 0.670, speed 0.707

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 124.7; preserves order: yes
• Deuteranopia: ΔE total 107.9; preserves order: yes
• Tritanopia: ΔE total 127.6; preserves order: yes

Related

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