In our ongoing efforts to ensure our digital spaces and communications are as inclusive as possible, Penn requires the captioning of all multimedia. - Web Accessibility at Penn
Penn Libraries uses Trint to combine auto-captioning with human editing.
8% of men and .5% of women are colorblind. At Penn that's 1781 people. (Penn population stats taken from diversity.upenn.edu.)
Below left: A LibCal room reservation grid as most people see it.
Below right: The same grid seen with the most common type of red-green colorblindness. Luckily, we added x's for unavailable rooms and checkmarks for your requests.
191,700,000 Americans correct their vision.
Text to background contrast must accommodate people with moderately low vision. That means a contrast ratio of 4.5:1.
People with low vision may set their browsers to 200%, 300%, even 400%. These people use desktop computers to see the mobile version of your page.
What works: Content that re-flows to accommodate mobile devices.
What doesn't work: Content that requires horizontal scrolling to read simple sentences.
What if text grows and images do not?
Solution: Set measurements in "rems."
Using rems requires that someone set up "rems" on the back end of your website. LibGuides and most Drupal sites are already set. "Need help with the rems setup?, ask ALT.