Why Do Passports Come In Different Colors?

Red Passports

Burgundy passports are used by members of the European Union (sans Croatia), and countries interested in joining (think: Turkey) have changed their passport colors to match. The Economist called this a “branding exercise.” The Andean Community (also known for past EU-ambitions) of Bolivia, Colombia, Ecuador, and Peru also has burgundy passports. The Swiss passport, in effortless and famously Swiss-fashion, matches their flag,