The flag is based on the Blue Ensign of the United Kingdom, is twice as long as it is wide, and consists of a dark blue field that can be notionally divided into four quadrants.

• 澳大利亚国旗是以英国的蓝色旗舰为基础，长是宽的两倍，暗蓝色的底纹，它被分为四块相同的部分。