In 1968, the Alberta government authorized the design of an official flag. On 1 June 1968, the flag of Alberta, Canada, was adopted.
The flag has the proportions 1:2, with the provincial shield of arms in the centre of a royal ultramarine blue background. The shield's height is 7/11 that of the flag's height.
The provincial colours, adopted in 1984, are blue and gold (deep yellow); they are also referred to as "Alberta blue" and "Alberta gold", appearing on the flag/shield in the sky/background and wheat background, respectively.