First of all, sorry if this is old information, used the search function before posting this but didn't find anything.
Here are the exact numbers for the ESB Fett:
The green/olive was "Pantone 350U"
The dark blue/green was "Pantone 553U"
The shoulder bells strangely weren't pure yellow but "Pantone 154U" (kind of brown??)
The dark red was "Pantone 491U"
Here is an online calculator where the colors are shown in RGB format (perhaps that helps when mixing these colors in your local paint suplly?)
RGB Color Chart