ERDC DivLow PurpleGreen

Summary

ERDC DivLow PurpleGreen is a diverging colormap from paraview. Two arms meet at a pivot of lightness 0.32, hue sweeps 200° from magenta to green, and order holds under all three colorblind…

ERDC pastel purple↔green diverging.

Perceptual profile (OKLCh)

• Lightness: 0.832 → 0.816 (range 0.518, min 0.313, max 0.832); non-monotonic; midpoint 0.315
• Chroma: min 0.000, max 0.165, mean 0.096
• Hue: 327.0° → 127.4° (span 199.7°), path monotonic-ccw; quadrants: magenta, green
• Pivot: t 0.498, lightness 0.315, hue jump 179.1°, smoothness 0.504
• Endpoint temperature: cool → warm
• Perceptual ΔE: total 132.4, mean/step 0.519, max step 0.902, smoothness 0.833, speed 0.519

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 122.7; preserves order: yes
• Deuteranopia: ΔE total 121.3; preserves order: yes
• Tritanopia: ΔE total 111.7; 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 Icefire (H), ERDC Icefire (L)
• All colormaps