National colors: Green and gold (current official shades).

Historical flag colors: Blue and white.
(The shade of blue is lighter than the previous flag’s, implying independence)

The gold boomerang represents the heritage of the indigenous peoples and the country’s golden coasts.

The golden wattle stands for federation, 7 petals for the 6 states and the Northern Territory, as well as the natural wealth of the land.

The white 7-pointed stars symbolize the barrier reef and the 7 external territories.

The star shape in the middle of the wattle is the ACT.

The green curve is for the continent’s wildlife and the ability to preserve nature.

The large blue field displays the vast oceans around the island nation.

The simplified Southern Cross denotes the southern hemisphere.

The hoist shapes point forward and eastward towards a bright future.

The variety of colors indicates the diversity of people, nature, resources and accomplishments in the country.

Last, but not least, the lack of the color red expresses the nation’s desire for peace.