I'm in the process of working with our designers to come up with a graphical treatment for a comparison results table. We will produce a design, and then receive feedback from the business that they can't see certain elements of the design on their monitors (pale blue panels, grey backgrounds etc). We KNOW their monitors are pretty poor - around 1:800 contrast ration. I have looked in vain for anything that will help us ascertain which contrast monitor we should be testing designs on, and at what point we would consider a montiro to be too poor quality to worry about.
Anyone have any experience of this? I am not referring to text contrast here, as there are plenty of sites to help us with that. It's just this: Can everyone see this grey shading? If not, who can't? How many users is that likely to affect?