Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

[BUG]: Changing marker.colorscales with a dropdown menu doesn't work for most colors

Open
#5,462 1 comment 0 reactions 1 assignee View on GitHub

@emilykl is already working on this.

Since Jan 14, 2026.

Assessment

This issue has not been assessed yet.

Description

bug

Changing marker.colorscales with a dropdown menu doesn't work for most colors, as can be seen in the example below:

import numpy as np
import itertools as it
from plotly import graph_objs as go

x, y = np.array([*zip(*it.combinations(range(20), 2))])
z = np.random.random(len(x))
colors = ['Brwnyl', 'Agsunset', 'Sunsetdark', 'Magenta', 'Sunset', 'Purpor', 'Purp', 'Tealgrn', 'Teal', 'Bluyl', 'Aggrnyl', 'Emrld', 'Darkmint', 'Blugrn', 'Mint', 'Pinkyl', 'Peach', 'Oryel', 'Redor', 'Burgyl', 'Burg', 'tempo', 'amp', 'speed', 'matter', 'algae', 'dense', 'deep', 'gray', 'ice', 'solar', 'haline', 'thermal', 'turbid', 'YlOrRd', 'YlOrBr', 'YlGnBu', 'YlGn', 'Reds', 'RdPu', 'RdBu', 'Purples', 'PuRd', 'PuBuGn', 'PuBu', 'Oranges', 'OrRd', 'Greys', 'Greens', 'GnBu', 'BuPu', 'BuGn', 'Blues', 'Rainbow', 'Jet', 'Hot', 'Electric', 'Bluered', 'Blackbody', 'Turbo', 'Plasma', 'Magma', 'Inferno', 'Cividis', 'Viridis', 'Plotly3', 'Portland', 'Picnic', 'Earth', 'Tropic', 'Tealrose', 'Temps', 'Geyser', 'Fall', 'Armyrose', 'oxy', 'curl', 'delta', 'balance', 'Spectral', 'RdYlGn', 'RdYlBu', 'RdGy', 'PuOr', 'PiYG', 'PRGn', 'BrBG']

fig = go.Figure()
fig.add_scatter3d(
    x=x, y=y, z=z,
    mode="markers",
    marker=dict(
        line=dict(width=0.1, color="black"),
        size=z*10,
        color=z,
        colorscale="Turbo",
        showscale=True,
    ),
)
fig.update_layout(
    updatemenus=[
        dict(
            buttons=[
                dict(label=color, method="restyle", args=[{
                    "marker.colorscale": color,
                }, [0]])
                for color in colors
            ],
        ),
    ],
)
fig.show()

Note that "Turbo" works when setting the figure, but not when updating it with a button.
Using Python=3.14.2 and Plotly=6.5.1.

Dominant language
Python
Stars
18.8k
Forks
2.8k
Avg merge
13h 41m
Merged PRs (30d)
21

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from plotly/plotly.py

All issues in plotly/plotly.py

Similar issues

More Python issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.