# romaO

Canonical URL: https://colorcurio.us/colormaps/crameri.romaO
Source type: Colormap
Type: cyclic
Collection: crameri
Attribution: Crameri 2018, Scientific Colour Maps (https://www.fabiocrameri.ch/colourmaps/)
License: CC-BY-4.0
Source: https://www.fabiocrameri.ch/colourmaps/
Tags: scientific, isoluminant
Stops: 256

## Summary

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

Cyclic variant of roma.

## Perceptual profile (OKLCh)

- Lightness: 0.429 → 0.429 (range 0.453, min 0.429, max 0.882); non-monotonic; midpoint 0.882
- Chroma: min 0.055, max 0.113, mean 0.090
- Hue: 349.1° → 347.4° (span 358.3°), path monotonic-cw; quadrants: rose, red, orange, yellow, chartreuse, green, mint, cyan, azure, blue, violet, magenta
- Endpoint temperature: warm → warm
- Perceptual ΔE: total 173.7, mean/step 0.681, max step 0.825, smoothness 0.884, speed 0.681

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 153.0; preserves order: no
- Deuteranopia: ΔE total 148.0; preserves order: no
- Tritanopia: ΔE total 165.2; preserves order: yes

## Related

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