The UK Government guidelines are clear that all publicly funded websites should be available to all uses including those with:

• impaired vision
• motor difficulties
• cognitive impairments or learning disabilities
• deafness or impaired hearing

Web accessibility simply means is that everyone who reviews your blog site should have an equitable experience.

The following are common accessible issues: 

• Navigation and Content are not accessible to users of screen-readers or accessibility plugins.
• Videos, images and audio recordings do not have captions or text alternatives.
• Colours used do not have sufficient contrast to allow the content to be easily read.

Fortunately accessibility issues are simple to address. Help is available with the CampusPress accessibility plugin which highlights accessibility issues when users ‘Preview Changes’ to a page or post.

Review the accessibility guidance here: https://campuspress.com/wordpress-accessibility-guide for info on how to locate and address accessibility issues in your site.

Publicly available sites should have a accessibility statement, view the CampusPress accessibility statement here: https://campuspress.com/docs/accessibility/