You're correct it is a gray color. I have young "good" eyes and I frequently increase the text size on most webpages (ctrl/cmd +). Most text is very small on the web. No reason to strain the eyes, just blow it up.
I trick I learned many moons ago for high-stakes presentations was to use 95% black (ie very slightly grey) text on a 5% black (ie very VERY light grey) background. Drops the contrast but in a barely noticeable way, and improves readability. Some web designers will lean into this.
In my last full-time job, when I was already in my mid-fifties, our marketing people came up with a new design of business cards for everyone. Text was a fashionable light grey on white background. I went to see them and asked if the individuals who would make decisions on our quite expensive software would be nearer my age or theirs. Well they'd be at the older end of course. So why do you make these that I and people my age struggle to read?
You have an avatar of a Vault Boy and your name is Fallout Boy ... I was making a gaming joke about too many RADs ... my bad, not everyone lives in my head.