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 remained loyal to France until the end.

1ST CUIRASSIERS CAVALRY
BODY PART(S)--COLOR
cuirass, pants, gloves--white
arms--sea blue 1172
helmet, boots, belt--black
epaulettes--red,brit.crim. 2009
collar--red 1150
cuirass front, chin strap, helmet--gold
hair--brown, italian dark 2111
face--flesh
sword--silver
horse--whatever
blanket--red,brit.crim. 2009
saddle, straps--leather 1736
blanket trim--gold
base--green 2029

MAMELUKE CAVALRY
BODY PART(S)--COLOR
hat--white
hair--brown, italian dark 2111
pants, vest, hat top--red 1150
shirt sleeves, sash--blue 2031
vest trim (arm&center), cuffs--yellow 1169
straps, shoes, plume, scabbard--black
hat button--gold
pistol handles, sword handle--brass
stirrups & straps, sword--steel
hands, face--flesh
horse--white
blanket, blanket roll--green,OD 1164
blanket roll end/blanket trim--white w/red center/white & red stripe
saddle--brown 1166
straps--black w/gold buttons
base--green 2029

FRENCH 2ND DRAGOONS CAVALRY
BODY PART(S)--COLOR
coat--dark green 2027
pants--gray,ital.blue 2113
coat front & trim--mixed dark pink
helmet--brass
officer belt,boots,hat tassle,scabbard--black
belt,straps,gloves--white
face--flesh
gun,hair,pouch--brown, italian dark 2111
gun barrel--gun metal 1795
buttons, officer epauletts--silver
sword--steel
sword handle,chin strap,buckles,scabbard trim--gold
horse--whatever
blanket, box--dark green 2027
blanket & box trim, blanket roll--white
saddle--leather 1736
straps--black
saddle cover (officer = D. green)--light gray 2038
saddle cover trim (officer = white)--mixed dark pink
base--green 2029

FRENCH HEAVY CAVALRY,2ND CARABINIERS
BODY PART(S)--COLOR
bugler shirt--green,OD 1164
cuirass undershirt--sea blue 1172
coat & tails,pants,gloves,scabbard strap--white
cuirass,helmet--brass
collar,coat tail trim--mixed baby blue
boots,scabbard,pouch,collar center--black
epaulettes,hat crest--red 1150
cuirass trim,helmet front--silver
straps--yellow 1169
stirrup straps,belt--leather 1736
bugle,sword handle,scabbard trim,buttons--brass
hair,gun--brown ital. dark 2111
gun barrel--gun metal 1795
face--flesh
chin strap--silver
sword,stirrup--steel
epaulette center--sea blue 1172
horse--whatever
blanket & roll--sea blue 1172
saddle blanket--camouflage gray 1733
blanket & roll trim & emblam--yellow 1169
straps--black
bit,buttons--steel
base--green 2029