# CET-D1

Canonical URL: https://colorcurio.us/colormaps/colorcet.CET-D1
Source type: Colormap
Type: diverging
Collection: colorcet
Attribution: Kovesi 2015, "Good Colour Maps: How to Design Them" (arXiv:1509.03700)
License: CC-BY-4.0
Source: https://colorcet.com/
Tags: perceptually-uniform
Stops: 256

## Summary

CET-D1 is a diverging colormap from the colorcet collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Linear-luminance diverging blue-white-red.

## Perceptual profile (OKLCh)

- Lightness: 0.496 → 0.508 (range 0.438, min 0.496, max 0.934); non-monotonic; midpoint 0.934
- Chroma: min 0.007, max 0.217, mean 0.111
- Hue: 264.6° → 28.8° (span 129.7°), path monotonic-cw; quadrants: blue, violet, orange, red
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 115.5, mean/step 0.453, max step 0.607, smoothness 0.886, speed 0.453

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 109.1; preserves order: yes
- Deuteranopia: ΔE total 106.8; preserves order: yes
- Tritanopia: ΔE total 111.6; preserves order: yes

## Related

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