# Oleron

Canonical URL: https://colorcurio.us/colormaps/crameri.oleron
Source type: Colormap
Type: multi-sequential
Collection: crameri
Attribution: Crameri 2018, Scientific Colour Maps (https://www.fabiocrameri.ch/colourmaps/)
License: CC-BY-4.0
Source: https://www.fabiocrameri.ch/colourmaps/
Tags: scientific, topographic, land-and-sea
Stops: 256

## Summary

Oleron is a multi-sequential colormap from the crameri collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Multi-sequential bathymetry+topography. Sourced from ScientificColourMaps8/oleron/oleron.txt.

## Perceptual profile (OKLCh)

- Lightness: 0.291 → 0.987 (range 0.695, min 0.291, max 0.987); non-monotonic; midpoint 0.956
- Chroma: min 0.022, max 0.115, mean 0.078
- Hue: 269.5° → 106.8° (span 201.2°), path monotonic-ccw; quadrants: blue, violet, green, chartreuse, yellow
- Endpoint temperature: cool → neutral
- Perceptual ΔE: total 205.8, mean/step 0.807, max step 65.268, smoothness 0.000, speed 0.807

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 188.9; preserves order: no
- Deuteranopia: ΔE total 193.5; preserves order: no
- Tritanopia: ΔE total 209.1; preserves order: no

## Related

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