Screen magnification

People with disabilities rely on interface controls that are used programmatically. These controls have a visual label, as well as a programmatic label, known as its Accessible Name.

Placement of controls affects their ease of use.

Color-contrast-checking tools can compare two colors and report on the contrast ratio between them. Some tools will allow you to adjust these values until the ratio is sufficient, helping you to choose a color scheme that avoids contrast problems.

Adding structure to web content makes it more readable and comprehensible to everyone and especially to people with a visual or cognitive impairment that makes reading on-screen content difficult.

Headings are used to group and label sections of content, giving visual structure to the page and providing a means of navigation to screen reader users.

Avoid referring to a button, menu, or other item in the page only by its position on the page; instead, use additional information that describes the content.

When you include a list in your page content, this relationship needs to be conveyed visually, and it also needs to be conveyed to people using screen readers.

Headings are important orientation aids, and they help people quickly identify the content on your page. When headings are correctly identified, they also allow screen reader users to quickly navigate from heading to heading.

Some people understand complex information best when it's presented visually, such as as a chart or diagram, while others find that reading the information suits them better.

Consistency is one of the cornerstones of good usability.