I agree with the article headline, but font color is only a small part of it.

What makes Web page unreadable?

> Constantly shifting color contrast of text blocks. Page starts with dark on light, then shifts to light on dark as you scroll down, then shifts back. You can literally feel your pupil dilating and undilating.

> Massive font, especially serif like the one you see on the author's page. https://backchannel.com/how-the-web-became-unreadable-a781dd...

> Acres of poorly laid out photos and poorly aligned text with several different font sizes, type face, and weight. theverge.com home page being one of them.