# Speed

Canonical URL: https://colorcurio.us/colormaps/cmocean.speed
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, yellow-green
Stops: 256

## Summary

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

Designed for current speed.

## Perceptual profile (OKLCh)

- Lightness: 0.983 → 0.240 (range 0.744, min 0.240, max 0.983); monotonic; midpoint 0.603
- Chroma: min 0.034, max 0.158, mean 0.116
- Hue: 105.4° → 137.5° (span 56.0°), path monotonic-cw; quadrants: chartreuse, green, mint
- Endpoint temperature: warm → neutral
- Perceptual ΔE: total 90.3, mean/step 0.354, max step 0.398, smoothness 0.921, speed 0.354

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 79.4; preserves order: yes
- Deuteranopia: ΔE total 79.6; preserves order: yes
- Tritanopia: ΔE total 104.1; preserves order: yes

## Related

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