Programmatically read Shape fill & stroke color?

Somehow, I've been unable to figure out exactly how to do this, even though I suspect it should be dead simple!

All I want to do is read the colors of the fills & strokes on some objects I've imported from Adobe Illustrator. They have very specific colors applied to them, such that I can parse them (hopefully!) and know what to do with the objects based on their unique color.

Any help/sample code appreciated!