# Oslo

Canonical URL: https://colorcurio.us/colormaps/crameri.oslo
Source type: Colormap
Type: sequential
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, perceptually-uniform, dark-start, blue
Stops: 256

## Summary

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

Sourced from ScientificColourMaps8/oslo/oslo.txt.

## Perceptual profile (OKLCh)

- Lightness: 0.070 → 1.000 (range 0.930, min 0.070, max 1.000); monotonic; midpoint 0.576
- Chroma: min 0.000, max 0.114, mean 0.057
- Hue: 129.1° → 183.4° (span 132.7°), path folded; quadrants: blue
- Endpoint temperature: neutral → null
- Perceptual ΔE: total 90.8, mean/step 0.356, max step 0.498, smoothness 0.858, speed 0.356

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 91.2; preserves order: yes
- Deuteranopia: ΔE total 93.2; preserves order: yes
- Tritanopia: ΔE total 93.2; preserves order: yes

## Related

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