The flag of Norfolk Island has a green field with a white vertical stripe at the hoist side, which contains a green Norfolk Island Pine tree. The aspect ratio of the flag is 1:2.

Color codes:

• Green: Pantone 355 C, HEX #009E60, RGB (0,158,96)
• White: Pantone Safe, HEX #FFFFFF, RGB (255,255,255)

Geometric properties and measurements:

• The width of the white stripe is 1/3 of the flag's width.
• The height of the Norfolk Island Pine tree is 3/5 of the flag's height, centered within the white stripe.

Other relevant information:

• The flag was officially adopted on January 17, 1980.
• It is a defaced British Blue Ensign, with the Union Jack in the canton.