# Ice

Canonical URL: https://colorcurio.us/colormaps/vispy.ice
Source type: Colormap
Type: sequential
Collection: vispy
Attribution: vispy 0.x, vispy/color/colormap.py
License: BSD-3-Clause
Source: https://vispy.org/api/vispy.color.colormap.html
Tags: light-end, blue-white
Stops: 256

## Summary

Ice is a sequential colormap from the vispy collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

vispy preset 'ice' (blue→white).

## Perceptual profile (OKLCh)

- Lightness: 0.452 → 1.000 (range 0.548, min 0.452, max 1.000); monotonic; midpoint 0.725
- Chroma: min 0.000, max 0.313, mean 0.157
- Hue: 264.1° → 0.0° (span 96.0°), path monotonic-cw; quadrants: blue
- Endpoint temperature: cool → null
- Perceptual ΔE: total 72.1, mean/step 0.283, max step 0.477, smoothness 0.788, speed 0.283

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 61.1; preserves order: yes
- Deuteranopia: ΔE total 67.8; preserves order: yes
- Tritanopia: ΔE total 62.4; preserves order: yes

## Related

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