Most reports I think are basically black, white and gray, because most reports are printed on b/w laser printers.
I would agree with you that red on green is a poor choice of colors, even for the color blind(which I am to a degree).
I don't think that there is a standard, but I am tend to use arial, but it is because I like it. The font depends on how much info you are trying to cram into a report and how big the paper is (report requirements).
If there is color in my reports it is a colored line or set of lines, again because most reports are printed in black and white. I have done shadings to differentiate different parts of the report (like alternating rows) and been told by the client that they don't want to use that much toner and to remove it, even though I think the report is harder to read, so color toner would have been out in a flash.
Hope some of this helped.