| > Grey text on a white background is generally accepted as easier on the eye/mind when reading sentences That may the single most propagated unfounded myth in UI design this decade. [1] While it's true that pure black on pure white causes problems for some dyslexic users, there is also a _minimum_ required contrast [2], which is routileny ignored by many "stylish" web sites. The plague of contrast-less "light grey on white" have been adopted by plenty of "web 3.0" sites out of following fashionable trends, to the point of making them unreadable. I've been forced to place a "Contrast" bookmarklet on the toolbar of all my browsers to fix all those terrible contrast-less pages I found everywhere, and I'm forced to use it dozens of times a day to alleviate my aching eyes. (Hexadecimal #333 is my personal upper level of comfort on white backgrounds, anything above that begins physically hurting my eyes when reading any kind of long text). [1] http://contrastrebellion.com/ [2] http://www.w3.org/TR/AERT#color-contrast |
The first site you linked could exist for any design principle found on the web, just change the pattern to fit. The example they give also has negative text-shadow (engraved effect). That is not evidence of anything. Anyone could make a website with focus on a single design error like that.
The W3 link doesn't support your argument either, as all they are saying is to make sure there is enough contrast, not that grey text is wrong. They also include "provide sufficient contrast when viewed by someone having color deficits" in the title, which I took to mean people with impaired sight. IF you want to go down the rabbit hole that's is more than 1% of the www friendly toward people with accessibility problems you will be lost in there until rabbits evolve to live in houses.
Think of the kindle, is that black text on a white page? Now search for why people like e-readers over tablets, you will see that black on white is not good for the eyes.