Unfortunately I don’t have some pre-made theme that I can share, I mostly improvised with colours and styles that I noticed look good on other websites, then settled on some colour scheme and style using Sass variables that I use all over the place.
If it's easy, do you mind sharing the hex for some of the colors, such as the background? You've picked a really nice combo of colors that I'd like to bookmark
Hmm, I clicked on both links on both my phone (4G) and laptop (wifi) and got a 404 error each time. Perhaps it's not publicly accessible, and only accessible when logged in to your Github account. Strange.
These are easy to look up yourself with your browser's "Inspect" functionality. E.g. in Chrome, press Ctrl-Shift-I, click the <body> tag in the Elements panel, and there's the background colour in the Styles panel: #fef7ef. If you don't use Chrome, it will be something similar; right click on part of the page and choose "Inspect" or similar.
I started with the Blogophonic theme but I have heavily edited it since then: https://github.com/formspree/blogophonic-hugo
Unfortunately I don’t have some pre-made theme that I can share, I mostly improvised with colours and styles that I noticed look good on other websites, then settled on some colour scheme and style using Sass variables that I use all over the place.