# ERDC DivHi PurpleGreen

Canonical URL: https://colorcurio.us/colormaps/paraview.erdc-divhi-purplegreen
Source type: Colormap
Type: diverging
Collection: paraview
Attribution: ParaView / VTK — Kitware (presets curated by Moreland, Samsel et al.)
License: BSD-3
Source: https://raw.githubusercontent.com/Kitware/ParaView/master/Remoting/Views/ColorMaps.json
Tags: diverging, high-contrast
Stops: 256

## Summary

ERDC DivHi PurpleGreen is a diverging colormap from the paraview collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

ERDC high-contrast purple↔green diverging.

## Perceptual profile (OKLCh)

- Lightness: 0.335 → 0.306 (range 0.634, min 0.306, max 0.940); non-monotonic; midpoint 0.939
- Chroma: min 0.000, max 0.175, mean 0.084
- Hue: 304.1° → 134.6° (span 190.4°), path folded; quadrants: magenta, green
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 146.5, mean/step 0.574, max step 0.779, smoothness 0.817, speed 0.574

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 138.6; preserves order: yes
- Deuteranopia: ΔE total 135.7; preserves order: yes
- Tritanopia: ΔE total 127.8; preserves order: yes

## Related

- Family: https://colorcurio.us/colormaps/families/paraview
- All colormaps: https://colorcurio.us/colormaps