Tried this on 2 monitors, made a difference of 77%-85% I noticed that what I was actually seeing later on was 'is this more blue or green than the last colour'

Tried this on 2 monitors, made a difference of 77%-85% I noticed that what I was actually seeing later on was 'is this more blue or green than the last colour' due to my eyes adjusting to the previous screen and just seeing the difference.