So apparently I didn't have to second-guess myself :)
> Nope, May 1999
That's not what you think it is: https://www.w3.org/TR/1999/WAI-WEBCONTENT-19990324/wai-pagea...
The one which the previous version of my site failed to validate is apparently published in 2008: https://www.w3.org/standards/history/WCAG20 and when I wrote those styles back in who knows when [edit: found it, 2014 https://web.archive.org/web/20141219164444/https://egeozcan.... ], I wasn't aware of it. I first said 2001 because I looked at the first draft.
Its exactly what I think it is: "Ensure that foreground and background color combinations provide sufficient contrast" (with reference to lighthouse.org for specifics about contrast).
They didn't specifically define that ratio in the doc until WCAG 2, but thats irrelevant really.
It is relevant. I didn't have any means to test it, and that's what I saw as sufficient back then. You never admit you were wrong, I assume?
edit: you edited your comment, so here is the lighthouse.org page: https://web.archive.org/web/20080211110529/http://www.lighth... There was no ratio, so it's just my gut feeling which WCAG 2 had apparently decided was not enough and I didn't know it back then - not that there were enough tooling.
You were right from the start, I had created a site 9 years ago that gets only 65 points in an accessibility check today! So I can't suggest anyone to focus on accessibility?!
You too have a nice day!
> Apparently 2001
Nope, May 1999: https://www.w3.org/standards/history/WAI-WEBCONTENT
> I do apologize
No problem.