Some flags are remarkably simple. A few can be recognised from only two colours and a basic shape — yet their designs can carry centuries of history.
Japan
Japan's flag is a white field with a red disc representing the sun. Its simplicity makes it one of the world's most recognisable national flags.
Poland
Poland uses two horizontal bands: white above red. The design is extremely simple, with no emblem or complicated artwork.
Indonesia and Monaco
Both countries use a simple red-over-white design. Their flags show how a pair of horizontal colour fields can create a distinctive national symbol.
Switzerland
Switzerland combines a red field with a simple white cross. It is visually uncomplicated but immediately recognisable, and its unusual square shape makes it stand out.
Why simple flags work
Simple designs are easy to recognise at a distance, easy to reproduce and easy for children to draw. Good flag design often depends on being memorable rather than complicated.