Four-Color Triangle Flag - Visual Symbol for Diving or Signaling #3062239 (License: Personal Use)

The image displays a square flag divided diagonally into four equilateral triangles: top yellow, left black, right blue, and bottom red. This design corresponds to the international "Diver Down" flag variant used in some regions, especially in technical diving and certain national standards, signaling that a diver is submerged in the area. Its high-contrast colors ensure visibility both above and below water.

This flag is commonly used by recreational and technical divers, dive boats, and marine safety operations to alert other vessels of underwater activity. It matches user intent for identifying dive signals, maritime safety symbols, or educational content on nautical flags.