[wp-trac] [WordPress Trac] #31713: Color contast ratio in the admin

[WordPress Trac]

#31713: Color contast ratio in the admin
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 Reporter:  afercia            |      Owner:
     Type:  defect (bug)       |     Status:  new
 Priority:  normal             |  Milestone:  Awaiting Review
Component:  Administration     |    Version:  4.1
 Severity:  normal             |   Keywords:
  Focuses:  ui, accessibility  |
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 There's room for improvements for the color contrast ratio in the admin.
 Overall it's good but there are some places here and there were it's not
 sufficient, most notably:

 - Primary buttons
 - TinyMCE buttons
 - Login screens (see #31548)
 - orange (for example Comments Approve, Unapprove, Pending)

 For a AA level color contrast ratio should be at least 4.5:1.

 Please also notice `#777` on `#fff` gives a contrast of 4.48:1 which
 *substantially* complies with the required 4.5:1.
 You may not notice this because some color contrast checkers will round
 the reported value and will just report the first decimal "4.5:1" but
 actually it's 4.48:1.
 Just mentioning this to let you consider if there are any legal issues
 that require a *formal* compliance.

 A while ago I did a little research checking several colors in the admin
 and prepared a first draft of a patch. But after the admin color changes
 in #31234, at this point that patch can only be useful as a list of places
 to check :) Uploading it anyway as a starting point.

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Ticket URL: <https://core.trac.wordpress.org/ticket/31713>
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