If the website is for humans, why isn't it readable? I mean white text on an off-yellow background is mostly only readable by bots and screenreaders. I had to higlight the entire site to read anything, a trick which doesn't always work. And no link to leave a comment to the web site maintainer about the lack of contrast in their color selection.
I see white on dark purple at a perfectly legible size using a regular font. Did an extension you have installed block loading of an image or style sheet?
