Why Do Passports Come In Different Colors?
Maybe you have the most powerful passport in the world, or perhaps you carry the rarest. No matter the case, your passport will likely be one of four colors: blue, green, red, or black. What gives? While there are no official rules regarding passport colors, countries do follow a certain set of norms when designing them. The International Civil Aviation Organization (ICAO), which works to define the principles of air travel, suggests that countries use a specific typeface, type size, and font for official documents like passports.