7 News Why are green and gold Australia’s official national colours? 2 hours ago The News Room Green and gold were formally proclaimed as Australia’s national colours exactly 42 years ago on April 19, 1984. But why those colours? #green #gold #colour #Australia #Aussie Post navigation Previous Erin Patterson’s estranged husband signs book dealNext JUST IN: Ben Roberts-Smith breaks silence after bail release | 9 News Australia