# Ocean

Canonical URL: https://colorcurio.us/colormaps/cmasher.ocean
Source type: Colormap
Type: sequential
Collection: cmasher
Attribution: Ellert van der Velden — CMasher (10.21105/joss.02004)
License: BSD-3
Source: https://raw.githubusercontent.com/1313e/CMasher/master/src/cmasher/colormaps/ocean/ocean_norm.txt
Tags: perceptually-uniform, sequential
Stops: 256

## Summary

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

Black→blue ocean sequential.

## Perceptual profile (OKLCh)

- Lightness: 0.200 → 1.000 (range 0.800, min 0.200, max 1.000); monotonic; midpoint 0.592
- Chroma: min 0.000, max 0.109, mean 0.075
- Hue: 294.6° → 0.0° (span 294.6°), path monotonic-ccw; quadrants: violet, blue, azure, cyan, mint
- Endpoint temperature: cool → null
- Perceptual ΔE: total 100.8, mean/step 0.395, max step 0.449, smoothness 0.907, speed 0.395

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 82.0; preserves order: yes
- Deuteranopia: ΔE total 79.8; preserves order: yes
- Tritanopia: ΔE total 96.1; preserves order: yes

## Related

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