# Blue Orange (div)

Canonical URL: https://colorcurio.us/colormaps/paraview.blue-orange-div
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
Stops: 256

## Summary

Blue Orange (div) is a diverging colormap from the paraview collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Lab-interpolated blue↔orange diverging.

## Perceptual profile (OKLCh)

- Lightness: 0.208 → 0.199 (range 0.797, min 0.199, max 0.997); non-monotonic; midpoint 0.989
- Chroma: min 0.011, max 0.198, mean 0.139
- Hue: 282.4° → 3.5° (span 279.0°), path monotonic-ccw; quadrants: violet, blue, azure, cyan, mint, chartreuse, yellow, orange, red
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 244.7, mean/step 0.960, max step 3.824, smoothness 0.554, speed 0.960

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 205.1; preserves order: yes
- Deuteranopia: ΔE total 195.2; preserves order: yes
- Tritanopia: ΔE total 200.2; preserves order: yes

## Related

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