Just an aside: I really like the design of this blog: it's very clean and the text is black on white. It's kinda shocking how many websites disregard basic accessibility rules about contrast and make text light gray.
You might like my Neat CSS framework, which I use for everything these days. I didn’t use perfectly black, it’s off just a bit, which I find pleasing, but it still has plenty of contrast.
https://neat.joeldare.com