Is this the case on anyone else's monitor?

Looking at the grey scale they provide, I see that 50, 100 and 200 look the same on my bad monitor, but the difference between 200 and 300 is noticeable yet subtle on both the calibrated and bad monitor : I came across the material design color palette. Here is a blog post talking about the same problem Has anyone dealt with this before and have some suggestions - or are there any statistics on safe shades of grey to use on the web. Now the solution would be to darken the grey - but I want to find the sweet spot where as many users as possible can see the grey without making it too dark to be subtle on well calibrated monitors. My guess is there is some percentage of users who have a similar monitor, and even more who could configure their monitor but simply don't know that they should, or how to do it.

Playing with contrast and brightness doesn't help The problem monitor has no built in or driver based hue/saturation/gamma settings. I have a two monitor setup, and on one monitor, I can see the grey background of the cards, on the other I can't. I'm working from a design where the grey shade F0F0F0 is used as a subtle contrast on list items to lift them from the pure white background, eg:

Grey color background hd