# Linear Green (Gr4L)

Canonical URL: https://colorcurio.us/colormaps/paraview.linear-green-gr4l
Source type: Colormap
Type: sequential
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: perceptually-uniform, single-hue
Stops: 256

## Summary

Linear Green (Gr4L) is a sequential colormap from the paraview collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Lab linear-lightness green ramp.

## Perceptual profile (OKLCh)

- Lightness: 0.215 → 0.986 (range 0.770, min 0.215, max 0.986); monotonic; midpoint 0.585
- Chroma: min 0.020, max 0.206, mean 0.129
- Hue: 212.7° → 98.0° (span 114.7°), path monotonic-ccw; quadrants: azure, cyan, mint, green, chartreuse
- Endpoint temperature: cool → neutral
- Perceptual ΔE: total 105.9, mean/step 0.415, max step 1.395, smoothness 0.597, speed 0.415

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 98.3; preserves order: yes
- Deuteranopia: ΔE total 96.5; preserves order: yes
- Tritanopia: ΔE total 98.7; preserves order: yes

## Related

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