You might be right about #000 on white not causing eye strain any more than grey on white.
The grey font on sarahwener.net is more pleasing (to me) because I associate eye fatigue with overly contrasty page environments. Looking again, it really is the Merriweather font I like most about the text. The lighter grey colour is less to do with it.
White text on black on the other hand as I mentioned, it causes shimmering. It's hard to speed-read. Harsh white text on pure black will challenge your eyes after a few pages. I've been on the receiving end of user complaints about this very thing. We changed it to off white text and brought the black up slightly and everyone agreed it looked better.
As you say, bright white screens are lightbulbs shining in our eyes. Personally, it's the white backgrounds that hurt my eyes both on large monitors and reading web pages at night on my tablet. I even have a greasemonkey script that "fixes" this on some regular sites I visit such as Google. I don't touch my monitor brightness because I need it to be accurate for photoshop etc.
The grey font on sarahwener.net is more pleasing (to me) because I associate eye fatigue with overly contrasty page environments. Looking again, it really is the Merriweather font I like most about the text. The lighter grey colour is less to do with it.
White text on black on the other hand as I mentioned, it causes shimmering. It's hard to speed-read. Harsh white text on pure black will challenge your eyes after a few pages. I've been on the receiving end of user complaints about this very thing. We changed it to off white text and brought the black up slightly and everyone agreed it looked better.
As you say, bright white screens are lightbulbs shining in our eyes. Personally, it's the white backgrounds that hurt my eyes both on large monitors and reading web pages at night on my tablet. I even have a greasemonkey script that "fixes" this on some regular sites I visit such as Google. I don't touch my monitor brightness because I need it to be accurate for photoshop etc.