Attached: 1 image 2025 should be the year you stop using WCAG 2 colour contrast testing, and switch to APCA. This article is a few years old, and covers everything well. https://blog.datawrapper.de/c...

Generate color pairs and compare WCAG 2.x ratios against APCA Lc thresholds. Filter disagreements, lock colors, and verify results with external tools.

前回では、現在のWCAG2のコントラスト基準と課題について解説しました。今回はWCAG3で採用が検討されている新しいコントラスト基準、APCAについて解...

contrast-color() = contrast-color(<color-role>? <color> / <contrast-target> <contrast-algorithm> <color>#{2,}) <color-role> = background | foreground <contrast-algorithm> = auto | wcag | lstar | ap...

Ensure that the control's text label and accessible name are the same where possible. This practice supports both visual users and those interacting through voice commands or assistive technologies.

The goal here is to remove the need for users to manually move their mobile devices. Features such as shake-to-undo are problematic because they can be accidentally triggered by users who may not be able to hold their devices steady. Alternatively, requirements for device movement will be impossi…

We present a vision-language model (VLM) that automatically edits website HTML to address Web Content Accessibility Guidelines 2 (WCAG2) violations. We formulate this as a supervised image-conditioned program synthesis task, where the model learns to correct HTML given the HTML and its rendering. We collected WebAccessVL, a new dataset with manually corrected accessibility violations, establishing paired training data. We then propose a violation-conditioned VLM that additionally conditions on the WCAG2 violation count to guide the correction process. Experiments demonstrate that our method effectively reduces the average number of violations from 5.34 to 0.44 per website, outperforming commercial LLM APIs (Gemini, GPT-5). A perceptual study confirms that our edited websites maintain the original visual appearance and content.

Accessibility resources free online from the international standards organization: W3C Web Accessibility Initiative (WAI).

WCAG 2 Contrast Guidelines claim to help color vision problems, but studies indicate they may do more harm than good in some cases.