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fix: improve color contrast in menu element example for accessibility #2840

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Description

I changed the background color of the menu element example from bisque to black to fix the inaccessible color contrast issue, improving readability and meeting WCAG 2.1 contrast ratio standards.

Motivation

The previous background color did not meet the minimum contrast ratio requirement, making the text difficult to read for users with visual impairments (and even hard for normal users). This change improves accessibility across browsers.

Additional details

  • MDN menu element example
  • The issue is reproducible on macOS Monterey using Safari 17.5, Chrome 128.0.6613.138, and Firefox 130.0.

Related issues and pull requests

Fixes #2839

@yashrajbharti yashrajbharti requested a review from a team as a code owner September 16, 2024 06:23
@yashrajbharti yashrajbharti requested review from estelle and removed request for a team September 16, 2024 06:23
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@@ -1,5 +1,5 @@
.news {
background-color: bisque;
background-color: black;
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this makes it more accessible in dark mode, but makes the link above impossible to read in light mode.
Screenshot 2024-09-16 at 3 04 04 AM

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Okay, fixing it for both light and dark modes and checking in all the major browsers

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Making the following changes fixes the color contrast issue as checked in all major browsers:

(But I couldn't find a way without using a @media query for color schemes, and I didn't wanted to re-color the states of anchor tag, which by default comes with accessibility out of the box.)

.news {
  background-color: bisque;
  padding: 1em;
  border: solid thin black;

  @media (prefers-color-scheme: dark) {
    background-color: black;
  }
}

menu {
  list-style-type: none;
  display: flex;
  padding: 0;
  margin-bottom: 0;
  gap: 1em;
}

button {
  color: black;
  background: white;
}

Screenshot 2024-09-16 at 6 14 23 PM
Screenshot 2024-09-16 at 6 14 29 PM
Screenshot 2024-09-16 at 6 16 10 PM
Screenshot 2024-09-16 at 6 15 37 PM

@estelle Should I go for it?

@bsmth bsmth changed the title Fix inaccessible color contrast in menu element example for accessibility fix: improve color contrast in menu element example for accessibility Sep 18, 2024
Button color set to contrast colors from the user agent injected button text color that affected accessibility in safari, and fixed color contrast for dark theme
@yashrajbharti
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yashrajbharti commented Sep 18, 2024

The latest commit fixes the color contrast issues that occurred in Safari due to its user agent style sheet setting the color buttontext. This can also be fixed using color: unset.
The commit also cares about the light and dark modes where color contrast are now better for readability (greater than 5.6 in all cases).

Added image below:
Light theme:
Screenshot 2024-09-18 at 7 39 51 PM
Dark theme:
Screenshot 2024-09-18 at 7 39 43 PM
Safari (17.5)
Screenshot 2024-09-18 at 7 40 33 PM

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Inaccessible color contrast ratio in menu element example
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