Help:Using colours: Difference between revisions

Revision as of 00:25, 31 May 2024

Revision as of 00:27, 31 May 2024

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==Schemes for color-blind readers==

{{Shortcut|H:Colorblind}}

Approximately 1 in 12 men and 1 in 200 women with Northern European ancestry have red-green [[color blindness]]; this and other types affect people worldwide.<ref>{{Cite web|last=|first=|date=1 January 2015|title=Color Vision Deficiency|url=https://medlineplus.gov/genetics/condition/color-vision-deficiency/#frequency|archive-url=|archive-date=|access-date=29 January 2021|website=MedlinePlus|publisher=U.S. National Library of Medicine}}</ref> This table shows "safe" groups of colourscolors which are distinguishable to most colourcolor-blind people, although colourcolor should never be used as the sole method to convey information.

See also [[:Commons:Commons:Creating accessible illustrations]] for color blind friendly palettes.

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* If you are color-blind yourself, check your revised image with a color-sighted person to confirm the meaning is intact.

The following utilities may be of use in determining whether a revised image is distinguishable to color-blind users. Typically they take a web page or image file as an input, and render a colourcolor-blind simulated image as output:

* [https://addons.mozilla.org/en-US/firefox/search/?q=Colorblind&cat=all Mozilla Firefox color-blind addons]

* [https://michelf.ca/projects/sim-daltonism/ Sim Daltonism] simulates color blind vision and displays the results in a floating palette for macOS and iOS. Freeware.