Napoleon's forces were characterized by their iconic "Imperial Blue" coats, though supply shortages meant many line infantry units wore faded or more subdued versions during the 100 Days.
Unlike the redcoats, the 95th Rifles wore dark "rifle green" uniforms with black facings and leather equipment to provide camouflage for their skirmishing role.
Extremely diverse, ranging from Cuirassiers in polished steel breastplates to Chasseurs-à-Cheval in green jackets and Lanciers with distinctive square-topped "czapka" hats. The British & Allied Army: Redcoats and Rifles
Wellington’s army was a multinational force with a patchwork of uniform styles.
The most prestigious units, like the Old Guard Grenadiers, were distinguished by their tall bearskin caps featuring a brass plate with the Imperial eagle and a red plume.