RE: Disabled form fields

From the WCAG SC 1.4.3 below, the scenario (highlighted text) given under exception category to this contrast requirement. Though sometimes, the ‘disabled’ attribute coded on (useful to know) form fields e.g. ‘Continue to next step’, ‘Add to cart’, the elements are considered as ‘inactive UI element’ until it become enabled for action.

And coding ‘disabled’ or ‘aria-disabled’ are mainly for screen reader interpretation purpose, the visual clue of showing as ‘disabled with dull color’ still serve good to understand its state (disabled / enabled). Once it is enabled, it must satisfy the minimum contrast ratio.

However if there are other ways to show this visually without impacting the color requirement from design perspective, am also curious to know about it.

1.4.3 Contrast (Minimum): The visual presentation of text and images of text has a contrast ratio of at least 4.5:1, except for the following: (Level AA)

Large Text: Large-scale text and images of large-scale text have a contrast ratio of at least 3:1;

Incidental: Text or images of text that are part of an inactive user interface component, that are pure decoration, that are not visible to anyone, or that are part of a picture that contains significant other visual content, have no contrast requirement.

Logotypes: Text that is part of a logo or brand name has no minimum contrast requirement.

Thank you!

Best,
Poornima.

From: Harry Loots [mailto:harry.loots@ieee.org]
Sent: Friday, December 14, 2018 2:20 AM
To: W3C WAI ig <w3c-wai-ig@w3.org>
Subject: Disabled form fields

Dear all

My understanding of SC 1.4.3 (Contrast) is that disabled form fields should also be subject to minimum contrast levels, since these fields may provide pertinent information to the user.

Example from Google Material Design assets:
[image.png]

What is the view of this group?

Kindest regards
Harry

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