Highcharts has put a lot of effort into designing charts to be accessible. They did a presentation about it at my workplace a few months ago and I was impressed

Highcharts has put a lot of effort into designing charts to be accessible. They did a presentation about it at my workplace a few months ago and I was impressed by the passion and level of user testing they had done. https://www.highcharts.com/docs/accessibility/accessibility-module https://www.highcharts.com/docs/accessibility/accessibility-... is a good starting point to learn more about the sorts of features and considerations they've made (you can find articles, demos, and videos describing more from there)