Coca-Cola's original colour was green.

The story behind the answer

False. Coca‑Cola has always been a deep brown color, thanks to caramel coloring included in its original 1886 formula. While the drink’s name comes from coca leaves and kola nuts, neither made the beverage green. The persistent myth likely comes from Coca‑Cola’s famous “Georgia Green” glass bottles introduced in 1915; the green-tinted glass could make the liquid appear greener than it is, especially in certain lighting.

Remember it this way: the bottle was green, not the drink. The caramel color gave Coca‑Cola its signature brown hue from the start, whether served at early soda fountains or later in bottles and cans.