Lesson 3Web accessibility for visually impaired users
- Notion 15 - What are visual impairments and who do they impact on the web?
- Notion 16 - Accessibility issues visually impaired users can experience
- Notion 17 - Design principles for ensuring content is accessible for visually impaired users
- Notion 18 - Some important considerations about using and designing for assistive tools for visually impaired users
- Notion 19 - Example of design that is inaccessible for visually impaired users
- Notion 20 - What makes these website accessible for visually impaired users?
- Notion 21 - Review of the main concepts
Notion 20
What makes these website accessible for visually impaired users?
Target skills
Look at the following webpage and define why the website is accessible for peolpe with visual impairment.
Answer the following questions:
Colours doesn't matter to a visually impaired person:
Good job!
This is false! A visually impaired person is particularly sensitive to colours.
A tool that you can use in order to check if your content is accessible is the following webpage, where color contrast can be evaluated by entering hexadecimal codes:
The most used code in the HTML language, therefore at the computer level and in the construction of the web, is the "hexadecimal code" characterized by six alphanumeric characters preceded by the # symbol.
Without going into the specifics of other technical notes, the important thing is to know that this code allows us to understand if two colours can have a good colour contrast established 4.5:1 by the latest guidelines for accessibility of WCAG 2.0 web content 2008 (Web Content Accessibility Guidelines).
Here an example of colour contrast:
What do the Accessibility settings on the website allow you to do?
Good job!
All this settings ensure maximum accessibility
Making the documents on the webpage downloadable, improves accessibility:
Good job!
This ensures maximum accessibility due to the fact that with a document people with visual impairment can adapt the format as they wish and need