# IsoAZ180

Canonical URL: https://colorcurio.us/colormaps/niccoli.IsoAZ180
Source type: Colormap
Type: cyclic
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: cyclic, isoluminant, azimuth
Stops: 256

## Summary

IsoAZ180 is a cyclic colormap from the niccoli collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Hue-doubled isoluminant cycle for orientation data with 180° equivalence.

## Perceptual profile (OKLCh)

- Lightness: 0.713 → 0.712 (range 0.029, min 0.684, max 0.713); non-monotonic; midpoint 0.712
- Chroma: min 0.090, max 0.125, mean 0.106
- Hue: 0.3° → 17.1° (span 360.0°), path monotonic-ccw; quadrants: red, rose, magenta, violet, blue, azure, cyan, mint, green, chartreuse, yellow, orange
- Endpoint temperature: warm → warm
- Perceptual ΔE: total 300.5, mean/step 1.178, max step 1.592, smoothness 0.859, speed 1.000

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 170.8; preserves order: no
- Deuteranopia: ΔE total 174.3; preserves order: no
- Tritanopia: ΔE total 252.7; preserves order: no

## Related

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