> And before we continue, let’s make it absolutely clear that we have no control of the color of the text in this very article, as it is hosted through Medium.com, which features poor visual accessibility of their site design. Further, Medium prevents their users from selecting black text as a choice. While Medium’s “Fischer-Price-simple” content creation is easy to use, it is also extremely limited, and fails in accessibility in areas beyond color. Perhaps this article can serve as a wake up call regarding this issue.

So - why on EARTH are you publishing there? And for what it's worth, the areas that fail WCAG AA for colour contrast on this page are areas entirely within the control of the publication.