> Black text on a white background can cause eye strain because of too much contrast. I use dark greys for my content. Then, there is still a lot of contrast, but not as much as there would be with black text.

Is there such thing as having too much contrast, in the context of text relative to its background color? I still feel that this blog's text needs more contrast, not less. Perhaps it's only me, but the gray text used here is not contrasty enough for my eyes, at least on my monitor, and I find myself straining to read.

My favorite blog design is https://paulstamatiou.com/. It has just the right balance in contrast, and the text's spacing is perfect. I can read comfortably. I wish I could explain how it is more readable, but it just feels right.

EDIT: It's probably just my personal preference. I do notice #333333 (gray) is probably the lightest gray that's acceptable for me. The blog is using #4a4a4a, which feels a little too light. Also, I find HN to be very readable (which uses absolute black text), and I'd rather have a black text with light background than a gray text on a white background.