Flags That Look Alike

The four true twins

Romania and Chad fly the same blue-yellow-red upright bands; the entire difference is the blue, Chad’s being a darker indigo. The two governments have discussed the matter at the United Nations and neither would change. Indonesia and Monaco differ only in proportion, 2:3 against a squarer 4:5 – which matters here because this site draws flags at 3:2, Indonesia’s own shape. Colombia and Ecuador share the heavy-yellow tricolour, and Ecuador’s coat of arms is the tell: its plain civil version is Colombia’s design in different proportions. Moldova is Romania’s tricolour again, with the Moldovan arms at the centre and slightly warmer published shades – the shades this page preserves.

Three near misses

The Netherlands and Luxembourg were never trying to match: Luxembourg’s blue is visibly lighter and its flag runs slightly longer, but at a glance the red-white-blue stack is the same. Ireland and Côte d’Ivoire are mirror images – green at the pole for Dublin, orange at the pole for Yamoussoukro – so everything depends on remembering that a flag is read from its hoist. Sierra Leone and Gabon share only the layout of three horizontal bands: one is green, white and blue, the other green, yellow and blue. Those three pairs are decidable on sight, which is why Sierra Leone, Gabon and Côte d’Ivoire still take ordinary questions elsewhere on this site.

Why this page exists

A which-country-is-this question is only fair if exactly one option fits the drawing, so the genuinely ambiguous flags are quarantined: Chad, Moldova, Ecuador, Monaco and Luxembourg are never the flag you are asked to name anywhere else on this site. On this page the rules change. Each question names its pair out loud, every colour is the published shade, and the line beneath your answer explains the real-world difference. Call it flag trivia if you like; it is also the only honest way to test these pairs at all.