# Plotly3

Canonical URL: https://colorcurio.us/colormaps/plotly.plotly3
Source type: Colormap
Type: sequential
Collection: plotly
Attribution: plotly.js / plotly.py contributors
License: MIT
Source: https://github.com/plotly/plotly.py/blob/main/_plotly_utils/colors/sequential.py
Tags: multi-hue
Stops: 256

## Summary

Plotly3 is a sequential colormap from the plotly collection. Inspect its perceptual lightness, chroma, and hue profile on colorcurio.us.

Plotly default 3rd colorscale; deep purple→magenta→pink.

## Perceptual profile (OKLCh)

- Lightness: 0.359 → 0.888 (range 0.529, min 0.359, max 0.888); monotonic; midpoint 0.661
- Chroma: min 0.101, max 0.294, mean 0.238
- Hue: 264.8° → 326.4° (span 63.1°), path monotonic-cw; quadrants: blue, violet, magenta
- Endpoint temperature: cool → cool
- Perceptual ΔE: total 64.3, mean/step 0.252, max step 0.344, smoothness 0.739, speed 0.252

## Colorblind safety (ΔE under simulated CVD)

- Protanopia: ΔE total 52.6; preserves order: yes
- Deuteranopia: ΔE total 60.0; preserves order: yes
- Tritanopia: ΔE total 85.6; preserves order: yes

## Related

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