Perceivable

An app must be presentable in a way that users can perceive. For example, someone who is blind cannot see the interface. By making it possible to read the interface, the information can be perceived.

Examples#

• When an image or graph is not described textually, users with a visual impairment cannot perceive the information.

• When a video does not have captions, users with a hearing impairment cannot understand the information.

• When a button has too low contrast, it might not be clear for users that it can be clicked.

• When a form does not have clear labels, it can be unclear to users where and what information is expected from them.