# Turku

Canonical URL: https://colorcurio.us/colormaps/crameri.turku
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, warm
Stops: 256

## Summary

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

Sourced from ScientificColourMaps8/turku/turku.txt.

## Perceptual profile (OKLCh)

- Lightness: 0.012 → 0.945 (range 0.933, min 0.012, max 0.945); monotonic; midpoint 0.629
- Chroma: min 0.001, max 0.078, mean 0.048
- Hue: 343.3° → 18.4° (span 123.8°), path folded; quadrants: chartreuse, yellow, orange, red
- Endpoint temperature: null → warm
- Perceptual ΔE: total 97.1, mean/step 0.381, max step 0.447, smoothness 0.889, speed 0.381

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 81.6; preserves order: yes
- Deuteranopia: ΔE total 81.4; preserves order: yes
- Tritanopia: ΔE total 86.8; preserves order: yes

## Related

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