# Algae

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

## Summary

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

Designed for chlorophyll concentrations.

## Perceptual profile (OKLCh)

- Lightness: 0.947 → 0.240 (range 0.708, min 0.240, max 0.947); monotonic; midpoint 0.588
- Chroma: min 0.039, max 0.154, mean 0.103
- Hue: 140.2° → 147.5° (span 19.1°), path monotonic-cw; quadrants: green, mint
- Endpoint temperature: warm → neutral
- Perceptual ΔE: total 73.8, mean/step 0.289, max step 0.337, smoothness 0.916, speed 0.289

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 69.9; preserves order: yes
- Deuteranopia: ΔE total 68.7; preserves order: yes
- Tritanopia: ΔE total 72.4; preserves order: yes

## Related

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