# NCL temp 19lev

Canonical URL: https://colorcurio.us/colormaps/ncar.temp_19lev
Source type: Colormap
Type: sequential
Collection: ncar
Attribution: NCL/NCAR — UCAR (via hhuangwx/cmaps MIT wrapper)
License: MIT (wrapper) / public-domain (data)
Source: https://raw.githubusercontent.com/hhuangwx/cmaps/master/cmaps/colormaps/ncar_ncl/temp_19lev.rgb
Tags: climate, thermal
Stops: 256

## Summary

NCL temp 19lev is a sequential colormap from the ncar collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

NCL temperature magnitude ramp.

## Perceptual profile (OKLCh)

- Lightness: 0.245 → 0.305 (range 0.738, min 0.245, max 0.983); non-monotonic; midpoint 0.976
- Chroma: min 0.005, max 0.218, mean 0.108
- Hue: 260.5° → 29.2° (span 186.3°), path folded; quadrants: blue, azure, red, orange
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 174.5, mean/step 0.684, max step 1.034, smoothness 0.733, speed 0.684

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 152.7; preserves order: yes
- Deuteranopia: ΔE total 154.7; preserves order: yes
- Tritanopia: ΔE total 174.9; preserves order: yes

## Related

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