US FEDERAL STANDARD COLORS

 COLOR NO. OF IMAGES FS CODE
BROWNS    1       4 10/20/30 000
RED                          1   11/21/31 000
ORANGE      1    2    12/22/22 000
YELLOW   1  13/23/33 000
GREEN 14/24/34  000 
BLUE 1   2    3   15/25/35 000
GRAY    1   2    3    16/26/36 000
FLUORESCENT 18/28/38 000
MISC 1
 ADD-ONS  1  

GREAT COLOR LINKS AND WALK-A-ROUNDS

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http://www.hotel.wineasy.se/ipms/helpdesk.htm#color_charts