# LinearL

Canonical URL: https://colorcurio.us/colormaps/niccoli.LinearL
Source type: Colormap
Type: sequential
Collection: niccoli
Attribution: Matteo Niccoli — pmkmp.m (MATLAB Central FX 28982)
License: BSD-3 (Niccoli, mycarta)
Source: https://github.com/mycarta/PMKMP/blob/master/pmkmp/pmkmp.m
Tags: perceptually-uniform, rainbow, geoscience
Stops: 256

## Summary

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

Linear lightness rainbow; 100% perceptual; for interval data without external lighting.

## Perceptual profile (OKLCh)

- Lightness: 0.103 → 0.951 (range 0.847, min 0.103, max 0.951); monotonic; midpoint 0.537
- Chroma: min 0.000, max 0.215, mean 0.121
- Hue: 0.0° → 59.3° (span 300.7°), path monotonic-ccw; quadrants: rose, magenta, violet, blue, azure, cyan, mint, green, chartreuse, yellow
- Endpoint temperature: null → warm
- Perceptual ΔE: total 177.3, mean/step 0.696, max step 1.534, smoothness 0.609, speed 0.696

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 140.3; preserves order: yes
- Deuteranopia: ΔE total 137.2; preserves order: yes
- Tritanopia: ΔE total 151.3; preserves order: yes

## Related

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