[trynewideas]

It can provide two useful functions:

- Context in places where color is used to relay information but the designer failed to provide alternative means of gaining that context without sight. For instance, if a text field is "grayed out" to indicate a certain state on the field, but that state isn't independently communicated by a screen reader.

- The ability to more easily describe the page to a sighted person.

[jscholes]

Also, some context for the blind person when designing their own pages. If they're aware that website X is considered to have a good design, they can get a description of it and know what colour schemes, positioning and placement, etc might work for them.