Thread by @MMarie

Ok, presenter friends: Fall conference season is almost upon us, and I know many of you are currently or about to be making new presentations. Some reminders about accessible design and making sure your audience can read and understand the visuals you are presenting.

Don't use anything less than 24pt font for body text. 32pt would be better.
uxpamagazine.org/make-your-pres…

Make sure color contrast of your text vs the background is at least 4.5. If you have text on top of an image, you need to be careful with this as some of the colors in the image may not have good contrast.
medium.muz.li/the-science-of…

There are handy tools like developer.paciellogroup.com/resources/cont… that help you measure color contrast. There are also websites like accessible-colors.com where you can plug in your color values.

Minimize the amount of text on your slide. Avoid having giant paragraphs of text or a dozen bullet points on your slide.
washington.edu/doit/how-can-y…

Avoid using color as the only means of conveying visual information
adod.idrc.ocadu.ca/powerpoint2010…

Avoid bad color combinations that don't work for people with color vision deficiency (but if you mess up here, that's what the extra visual property for conveying information above is for).
usabilla.com/blog/how-to-de…

Don't go crazy with the animations and transitions. Simple appear/disappear may be fine, but often we don't need any transitions. Use animations to help focus attention on a part of your visual presentation, not just to entertain.
webaim.org/techniques/pow…

If you are leaving behind your presentation file, make sure you have added alt text to all non-text content or marked decorative items as such. And make sure the reading order is properly set for screen readers and keyboard users.
blog.247accessibledocuments.com/2017/02/15/che…

PowerPoint has a built-in Accessibility Checker that is there to help you: support.office.com/en-us/article/…

Now go forth and make beautiful, engaging, accessible presentations.