# Winter

Canonical URL: https://colorcurio.us/colormaps/vispy.winter
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: MATLAB-derived, blue-green
Stops: 256

## Summary

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

vispy preset 'winter' (blue→green-cyan).

## Perceptual profile (OKLCh)

- Lightness: 0.452 → 0.875 (range 0.423, min 0.452, max 0.875); monotonic; midpoint 0.663
- Chroma: min 0.148, max 0.313, mean 0.199
- Hue: 264.1° → 151.1° (span 113.0°), path monotonic-ccw; quadrants: blue, azure, cyan, mint
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 98.2, mean/step 0.385, max step 0.452, smoothness 0.857, speed 0.385

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 80.6; preserves order: yes
- Deuteranopia: ΔE total 79.9; preserves order: yes
- Tritanopia: ΔE total 48.0; preserves order: yes

## Related

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