Design that works for all people, whatever their hardware, software, language, location, or ability
- The Must Have WCAG 2.1 Checklist by Essential Accessibility
- Accessible color generator by Material Design
- Accessible Color standards - Designing in the browser by Google Chrome Developers
There's a huge amount on information behind what accessibility means, WCAG standards and more.
I'm way more passionate about it than a real expert, and my-go resources for starting has been:
AAA Level: Optimal compliance
AAA compliance is known as the gold standard level of accessibility, which makes the difference between a pretty good experience with some roadblocks, and an excellent one that everyone can use.
It requires that you not only meet the guidelines for AAA, but also the requirements outlined in the previous two levels. In most cases it’s not always possible for all types of products to conform to the success criterias outlined in this level.
This is because AAA guidelines are more so for applications or websites where contrast is crucial, or where the consequences of not seeing would be catastrophic (think: disaster notifications, medical/healthcare apps, government, banking, automotive interfaces, and so on).
When it comes to contrast ratios it is essential that you meet a ratio of at least 7:1 for normal text and 4.5:1 for large or bold text.
Beyond these guidelines, a few of the requirements that you can expect under this level include:
- An alternative for time-based media is provided for all prerecorded synchronized media and for all prerecorded video-only media
- Sign language interpretation is provided for all pre-recorded audio content in synchronized media
- Interruptions can be postponed or suppressed by the user, except interruptions involving an emergency
Your vision’s ‘score’ indicates how far a person with perfect vision would need to stand away from this chart to see the same as you.
So, if you have 20/40 vision, when you’re 20 feet from the chart you’ll see what someone with perfect vision sees when standing 40 feet away. Having 20/100 vision means that at 20 feet you see what those with 20/20 vision see at a distance of 100 feet.
Learn how to improve the user experience of your site. Learn guidelines to build an accessible website. One that is accessible for everyone, not just a few. Learn Visual Accessibility, Low Vision Accessibility, Color Accessibility (colorblind), Physical Accessibility, Audio Accessibility, Cognitive Accessibility.