# Cold and Hot

Canonical URL: https://colorcurio.us/colormaps/paraview.cold-and-hot
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, thermal
Stops: 256

## Summary

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

Cyan↔red 5-point cold/hot diverging.

## Perceptual profile (OKLCh)

- Lightness: 0.905 → 0.968 (range 0.702, min 0.266, max 0.968); non-monotonic; midpoint 0.279
- Chroma: min 0.145, max 0.313, mean 0.212
- Hue: 194.8° → 109.8° (span 275.0°), path monotonic-cw; quadrants: cyan, azure, blue, violet, magenta, rose, red, orange, yellow, chartreuse
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 223.4, mean/step 0.876, max step 7.351, smoothness 0.000, speed 0.876

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 182.2; preserves order: yes
- Deuteranopia: ΔE total 177.2; preserves order: yes
- Tritanopia: ΔE total 207.0; preserves order: yes

## Related

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