Make text darker and increase contrast
I want to make the text darker my old iMac (2011), iPad (2014) and iPhone SE (2nd edition) (2020. I have difficulty distinguishing the grey text from the light background on all my devices. I've tried using "increase contrast" and this just increases the brightness and washes out the test instead of making the dark parts, especially the text darker. A few parts of the screen are black so my screens can do black.
Any insight, solutions, hacks?