# Diverging rainbow

Canonical URL: https://colorcurio.us/colormaps/colorcet.div-rainbow
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://raw.githubusercontent.com/holoviz/colorcet/main/assets/CET/diverging-rainbow_bgymr_45-85_c67_n256.csv
Tags: diverging, rainbow
Stops: 256

## Summary

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

## Perceptual profile (OKLCh)

- Lightness: 0.540 → 0.553 (range 0.315, min 0.540, max 0.855); non-monotonic; midpoint 0.855
- Chroma: min 0.091, max 0.243, mean 0.174
- Hue: 262.1° → 29.4° (span 269.7°), path monotonic-ccw; quadrants: blue, azure, cyan, mint, green, chartreuse, yellow, orange, red, rose
- Endpoint temperature: cool → warm
- Perceptual ΔE: total 201.6, mean/step 0.790, max step 2.285, smoothness 0.470, speed 0.790

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 182.3; preserves order: no
- Deuteranopia: ΔE total 160.0; preserves order: no
- Tritanopia: ΔE total 120.8; preserves order: no

## Related

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