Some automated testing tools
Manual testing for everyone
The first accessibility testing tool to use is your keyboard. Put down the mouse, and use the tab, arrow, and enter keys, and the space bar, to access the site.
Can you get around? Use the forms, dropdowns, buttons? Get out of the modals?
Next, get people you know to help out. Ask people who use assistive technology if they can use the site. Pay them to test it.
- webaim.org/resources/contrastchecker/ check contrast
- colorable.jxnblk.com/ find really good colour combinations
- hexrgba.com/ convert hex colours to RGB to create transparency
- developer.paciellogroup.com/resources/contrastanalyser/ an eyedropper to pick up colours
- codepen.io/yaphi1/live/oNbEqGV Optimal Overlay Finder, for readable text on a background image
squoosh.app is another good utility for reducing image file size.