# Linear Blue

Canonical URL: https://colorcurio.us/colormaps/paraview.linear-blue-8-31f
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 Blue is a sequential colormap from the paraview collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Lab linear-lightness blue ramp.

## Perceptual profile (OKLCh)

- Lightness: 0.991 → 0.273 (range 0.718, min 0.273, max 0.991); monotonic; midpoint 0.646
- Chroma: min 0.012, max 0.096, mean 0.076
- Hue: 164.8° → 281.7° (span 116.8°), path monotonic-cw; quadrants: mint, cyan, azure, blue, violet
- Endpoint temperature: neutral → cool
- Perceptual ΔE: total 91.8, mean/step 0.360, max step 0.943, smoothness 0.634, speed 0.360

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 70.8; preserves order: yes
- Deuteranopia: ΔE total 70.0; preserves order: yes
- Tritanopia: ΔE total 85.3; preserves order: yes

## Related

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