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Logo Usage Guidelines #18716
Description
Problem
Every once in a while get folks asking if they can put the Matplotlib logo on a tutorial or something and I keep forgetting what the answer is.
Suggested Improvement
It'd be useful to have that officially documented, preferably with PNG & SVG versions of the short & long logos.
Pandas has a good example of this sort of page, which they add onto their citation page
https://pandas.pydata.org/about/citing.html
Extra Info
Like the pandas page, we have the HTML color values of the logo care of @dorafc
Reacted by Tim Hoffmann
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QuLogic commentedon Oct 17, 2020
xref #15889
BhaswatiRoy commentedon Jul 30, 2021
#FF00FF
(magenta)
color can be added in the logo
pawjast commentedon Dec 8, 2023
I think creating:
should also be considered.
I've got some very basic Inkscape skill and could have a go at creating different logo versions in
.svg.Also, e.g. Medium publication not only includes a section and examples of how to use their logo but also an examples of how NOT to use/alter the logo which I think is quite cool and good suggestion.
https://medium.design/logos-and-brand-guidelines-f1a01a733592
I also noticed that many companies differentiate and give you an option to download:
rcomer commentedon Dec 8, 2023
@pawjast the Matplotlib logos are generated with Matplotlib, so there should be no need to resort to Inkscape :-)
https://matplotlib.org/stable/gallery/misc/logos2.html
pawjast commentedon Dec 8, 2023
Clever!
But also, what a shame... :)
timhoffm commentedon Dec 8, 2023
pawjast commentedon Dec 8, 2023
oscargus commentedon Dec 8, 2023
oscargus commentedon Dec 8, 2023
21 remaining items
tacaswell commentedon Dec 11, 2023
story645 commentedon Dec 11, 2023
story645 commentedon Dec 11, 2023
I'm hiding the logo discussion since it's off-topic for usage guidelines & there's nothing actionable to do there since it's off w/ the steering council.
story645 commentedon Aug 9, 2024
New discourse post has me realizing we never decided usage guidelines:
https://discourse.matplotlib.org/t/logo-usage-inquiry-whom-to-contact/24587
I think roughly they boil down to:
timhoffm commentedon Aug 9, 2024
Are you aware of https://numfocus.org/trademark-guidelines?
I suppose we fall under this. Would it be sufficient to link there?
Similar to pandas, we should provide a set of official logos to download.
story645 commentedon Aug 9, 2024
No, thank you for that link!
wuyao1997 commentedon Feb 7, 2025
The restrictions on the use of trademarks and logos on this page seem to be very strict. For example, when I want to give some souvenirs(not books) to my audience, I find that there are no relevant products on platforms like Amazon. And due to the restrictions mentioned on the above-mentioned web page, I think I can't customize souvenirs on my own either. Because this may involve commercial use, and it may be necessary to make some modifications to the logo(For example, as mentioned in #15889, "If it's scaled down much (<30%), the lines become too thin.").
In fact, I think some souvenirs, such as USB drives, keychains, nameplates with the product logo, might increase the revenue of the project.
timhoffm commentedon Feb 7, 2025
There’s official swag available via https://numfocus.myspreadshop.com/matplotlib+official+logo?idea=5c06baf3f937642bf0461976
We don’t want third parties to produce and distribute items with our logo, in particular not with modified versions.
rcomer commentedon Feb 7, 2025
Out of curiosity, who decides which project have which swag? Holoviz seems to have more options than anyone else.
timhoffm commentedon Feb 7, 2025
My guess is that nobody has decided this consciously - at least on the matplotlib side. I suppose that numfocus as the ower of the shop could configure which swag is available.
story645 commentedon Feb 7, 2025
That's a question someone can send to Numfocus and also offtopic ish here but numfocus has bimonthly project and project/staff meetings that we may want to collectively attend consistently (so like trade off which maintainer goes and report back type of thing)
iccir commentedon Jun 17, 2026
I believe that the colors specified in the "Extra Info" section are incorrect. They were likely captured with a color meter tool that applied a color space conversion (or a backend rendered with the wrong color space).
I'm attaching an HTML file which displays the original (probably incorrect) colors, the (probably correct) colors as 60% alpha over white, and the 100% alpha variants. I am assuming sRGB for all colors.
colors.html