Global passports generally only come in four primary colors—red, blue, green, and black—because they must meet strict international standards set by the International Civil Aviation Organization.

A closer look

Global passports generally only come in four primary colors—red, blue, green, and black—because they must meet strict international standards set by the International Civil Aviation Organization. Countries choose their specific shade based on geopolitical leanings, religious significance, or simply whatever looks best while being aggressively stamped by a bored border control agent. European Union nations universally favor burgundy to show solidarity, while Caribbean countries often pick blue to represent the ocean, proving that even international diplomacy is heavily influenced by basic color theory and branding aesthetics. So while you proudly clutch your little booklet thinking it represents your unique national identity, you are really just holding a standardized, globally mandated pantone swatch designed to be easily scanned by a machine