What was the original reason Coca-Cola adopted its famous bright red color for its branding?

Brand colors are powerful tools in the food industry, creating instant recognition and emotional connections with consumers. Some food and beverage brands have color associations so strong that the shade alone can evoke the product. Coca-Cola's vibrant red is perhaps one of the most recognizable brand colors worldwide, but its origin story might surprise you. Test your knowledge about this iconic food industry brand color with this challenging trivia question!

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To distinguish their barrels from alcohol during prohibition transport
Because red was scientifically proven to stimulate appetite and thirst
To match the color of the kola nut, one of the original ingredients
Because red dye was the cheapest available colorant in 1886