This is how the login form with errors example looks like:
The error message below the input has the color #FFA940 on a white background. This has a contrast ration of 1.9:1 and fails WCAG contrast checks (source: https://webaim.org/resources/contrastchecker/?fcolor=FFA940&bcolor=FFFFFF)
In #828, color contrast errors were ignored. Make sure to un-ignore them when working on this ticket.