These are the colors (Testors) which I've found most closely match the pictures (boxes, Osprey books, etc.). For one shade colors, here are the Testors numbers; black (1149 or 1749), white (1168 or 1768), gold (1144 or 1744), silver (1146), steel (1180 or 1780), brass (1182 or 1782), flesh (flat-various available shades or mixtures). All "XF-" colors are Pactra. Testors is sold in Europe under the name "Model Master".
ALL COLOR NUMBERS ARE TESTORS UNLESS OTHERWISE STATED.
NOTE: colors based on "Military Uniforms In Colour", Preban Kannik, Blandford Press, London, 1968., "Uniforms of Waterloo", Philip Haythornwaite, Arms and Armour, London, 1996, and the box art.
NOTE: The term "epaulette" is used for shoulder straps and actual epaulettes (extra material on shoulder).

Some countries changed sides often during this period. The "allies" listed here are those who generally anti French at one time or another.

BRITISH GRENADIER CO., 32ND (CORNWALL) REGIMENT INFANTRY
BODY PART(S)--COLOR
coat,shoulder wings--red,insignia 1705
pants,pack roll--gray,ital.blue 2113
epaulette,collar,cuffs--white
hat,collar center,boots,ammo pouch,pack,scabbard--black
canteen--bright blue 2032
NOTE: no coat & cuff stripes on officers
cuff & coat stripes(square ended-in pairs),straps,coat turnbacks,side pouch,hat plume--white
buckles,hat emblem,scabbard trim,sword handle,plume holder,officer buttons--gold
pack straps,shoulder wings fringe & trim,scabbard straps--white
gun,hair--brown,ital. dark 2111
canteen strap--leather 1736
hands,face--flesh
gun barrel--steel
buttons,bayonet,sword--silver
officer sash--mixed dark pink
base--green 2029