I don’t have numbers for you, but I do have a theory on why it makes sense. Monitor contrast has been going up for years to provide better photo and video quali

I don’t have numbers for you, but I do have a theory on why it makes sense. Monitor contrast has been going up for years to provide better photo and video quality. The screens I used in the 90’s couldn’t do black, only a dark shade of gray. In order to achieve the same apparent level of contrast as 20 years ago, you have to use dark gray text. People who’ve been around a while will instinctively do this to achieve an outcome that feels right, and those are the people who produce these guidelines.