# Phase

Canonical URL: https://colorcurio.us/colormaps/cmocean.phase
Source type: Colormap
Type: cyclic
Collection: cmocean
Attribution: Thyng, Greene, Hetland, Zimmerle, DiMarco 2016, Oceanography 29(3)
License: MIT
Source: https://matplotlib.org/cmocean/
Tags: oceanography, isoluminant
Stops: 256

## Summary

Phase is a cyclic colormap from the cmocean collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Cyclic; designed for phase angles.

## Perceptual profile (OKLCh)

- Lightness: 0.605 → 0.605 (range 0.022, min 0.605, max 0.627); non-monotonic; midpoint 0.626
- Chroma: min 0.099, max 0.254, mean 0.164
- Hue: 79.7° → 79.7° (span 360.0°), path monotonic-ccw; quadrants: yellow, orange, red, rose, magenta, violet, blue, azure, cyan, mint, green, chartreuse
- Endpoint temperature: warm → warm
- Perceptual ΔE: total 189.9, mean/step 0.745, max step 0.937, smoothness 0.789, speed 0.745

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 134.5; preserves order: no
- Deuteranopia: ΔE total 115.4; preserves order: no
- Tritanopia: ΔE total 150.6; preserves order: no

## Related

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