Accessibility

Ascenta Systems wants everyone to be able to use this site, and builds the sites it delivers to the same standard. This site aims to meet the Web Content Accessibility Guidelines (WCAG) 2.1 at level AA.

What that means here

• Every page can be used with a keyboard alone, with a visible focus outline.
• Text meets a contrast ratio of at least 4.5:1 against its background.
• Images that carry meaning have text alternatives; decorative ones are hidden from screen readers.
• Forms have labels, and errors are announced.
• Motion respects the “reduce motion” setting in your operating system.
• The site is checked with automated tools before each release and by hand on a keyboard and a screen reader.

Found a problem?

If any part of this site is hard to use, email don.h@ascentasystems.com with the page and what went wrong. You will get a reply from the person who builds the site, and the fix goes into the next release.

Last reviewed September 2026.