I do believe they used Floquil/Polyscale for the Jedi armor as well. Unfortunately, it's very difficult to go by the charts. I have seen at least three Floquil/polyscale charts, and there are some variations of the same color from chart to chart. So, it's bit of a crap shoot if you are ordering online trying to match color via online charts.
The best method is to pick the paints in person if it's possible, but for those whose hobby shops lack a decent Floquil/Poly S line, an educated guess-- and a little luck-- will just have to do.