Huh? The foreground is #404040 and background is #F9F9F9. That’s 9.84:1 which is high enough for WCAG AAA. The background image is speckled, but even the lowest-brightness pixel is #E8F7FA which is 4.72:1, which is not AAA, but is AA.
What are these ratios and the letter sequences?
Ratios are contrast ratios [1] while letter sequences are WCAG 2.0 conformance levels (AAA is the highest).
I didn't notice the contrast problem until seeing the GP comment, but I suspect that speckled backgrounds are worse than a solid #E8F7FA because they mess with people's ability to do edge detection when trying to see the shapes of the letters in the text.
I removed the background image and made the text blacker. Might take a force refresh to pick up the CSS file change.
Is it good enough or are further tweaks needed? If more, my web design skills are mediocre, so actionable feedback would be appreciated.
Looks perfect to me after ctrl+shift+r. I'm glad you removed that background image, it was rather pointless.