# NIPY Spectral

Canonical URL: https://colorcurio.us/colormaps/matplotlib.nipy_spectral
Source type: Colormap
Type: sequential
Collection: matplotlib
Attribution: matplotlib developers
License: matplotlib (BSD-derived)
Source: https://github.com/matplotlib/matplotlib/blob/main/lib/matplotlib/_cm.py
Tags: rainbow, land-cover
Stops: 256

## Summary

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

Land-cover-style multi-hue.

## Perceptual profile (OKLCh)

- Lightness: 0.000 → 0.845 (range 0.920, min 0.000, max 0.920); non-monotonic; midpoint 0.683
- Chroma: min 0.000, max 0.295, mean 0.200
- Hue: 0.0° → 0.0° (span 360.0°), path monotonic-ccw; quadrants: magenta, violet, blue, azure, cyan, mint, green, chartreuse, yellow, orange, red
- Endpoint temperature: null → null
- Perceptual ΔE: total 345.3, mean/step 1.354, max step 7.924, smoothness 0.092, speed 1.000

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 267.1; preserves order: no
- Deuteranopia: ΔE total 249.1; preserves order: no
- Tritanopia: ΔE total 326.0; preserves order: no

## Related

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