Dropper function or RGB for icon colors

I use the standard blue colors for XP, and the transparent background view for the tray icon doesn’t look good on the tray (the black font is surrounded by a white halo that makes it hard to read). So, I used the color picker to try to match the background to my toolbar color, and I discovered… it’s really hard to do. There’s no dropper function to just pick up the color, and barring that, the colors are reported in a single eight-digit integer value I can’t fathom. It’d be nice to have a dropper ability to match colors, and also to have the color picker report color values in RGB form, perhaps in the six-digit hex format.