The color contrast for the quizzes has been recently addressed within MDL-69392, however, the list of the permitted file types has the file extension in a light shade of grey that fails color contrast against the blue background.

Contrast is just 4.12 failing against Level AA requirements:

Besides the Quiz component passing the contrast requirements, is the use of a blue background justified?

We have had feedback from users affected by visual dyslexia who have issues reading the copy despite the more than adequate color contrast because of the blue background/blue text combination. Some of these users use colored lenses to ease the visual stress and they would need a white background.

Since the ability of completing a quiz is a vital use case, is there a strong enough reason for using a blue background and blue text? If the reason is just the separation of the quiz element from other parts of the page, could this blue be much lighter and/or make use of other separators?