three equal vertical bands of green (hoist side), white, and orange; officially the flag colors have no meaning, but a common interpretation is that the green represents the Irish nationalist (Gaelic) tradition of Ireland; orange represents the Orange tradition (minority supporters of William of Orange); white symbolizes peace (or a lasting truce) between the green and the orange
note:
similar to the flag of Cote d'Ivoire, which is shorter and has the colors reversed - orange (hoist side), white, and green; also similar to the flag of Italy, which is shorter and has colors of green (hoist side), white, and red