I just created some text, colored it white, placed it against a dark green background (solid hatch), brought the text up front using Draworder -- and thought I had it whipped. Wrong. The text prints black.
I then turned the text into True Color 255,255,255 and got same results.254,254,254 yields the same.
Index color 255 yields the same.
I am using acad.ctb, using object color option, and assigning 0% to that color screening.
In paper space I have "display plot styles" selected.