ERDC Icefire (L)

Summary

ERDC Icefire (L) is a diverging colormap from paraview. Two arms meet at a pivot of lightness 0.70, hue sweeps 352° from green to chartreuse, and order holds under all three colorblind simulations.

ERDC SciVis icefire — low-saturation variant.

Perceptual profile (OKLCh)

• Lightness: 0.920 → 0.920 (range 0.843, min 0.078, max 0.920); non-monotonic; midpoint 0.098
• Chroma: min 0.009, max 0.175, mean 0.118
• Hue: 130.2° → 121.8° (span 351.6°), path folded; quadrants: green, mint, cyan, azure, blue, orange, red, yellow, chartreuse
• Pivot: t 0.824, lightness 0.704, hue jump 13.2°, smoothness 0.982
• Endpoint temperature: neutral → neutral
• Perceptual ΔE: total 240.8, mean/step 0.944, max step 2.568, smoothness 0.609, speed 0.944

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 201.8; preserves order: yes
• Deuteranopia: ΔE total 206.3; preserves order: yes
• Tritanopia: ΔE total 221.8; preserves order: yes

Related

• Family: paraview
• Source: ParaView / VTK — Kitware (presets curated by Moreland, Samsel et al.)
• Similar diverging maps: Blue Orange (div), Cold and Hot, Cool to Warm, Cool to Warm (Extended), ERDC DivHi PurpleGreen, ERDC DivLow IcePeach, ERDC DivLow PurpleGreen, ERDC Icefire (H)
• All colormaps