Just a suggestion for future posts - I was going to post “what circles?” before I realized they were nearly black on a black background. Very hard to see!
Those circles are hardly visible on a calibrated monitor. I guess if your contrast is set so high that you´re able to comfortable see these circles, you shouldn`t do too many print jobs where color matters.
I´ve been using an X-Rite with basICColor. There are other colorimeters today which include hardware and software. If you are on a laptop, do not expect wonders. A Spyder5 pro might be enough.
I might just ask around if someone has a device like that to just calibrate my monitors once, not doing enough work where it would otherwise matter, but I’ll be sure to look into it!