The flag of Andorra features three vertical stripes in blue, yellow, and red, with the coat of arms of Andorra centered on the yellow stripe. The aspect ratio is 7:10, and the geometric properties of the flag are rectangular. The color codes for the flag are:

• Blue: Pantone 286C / RGB #0050A4
• Yellow: Pantone 109C / RGB #FFCD00
• Red: Pantone 186C / RGB #CE1126

The coat of arms in the center measures one-third of the height of the flag and includes elements such as the mitre, keys, and rosary of Saint Peter, who is the patron saint of Andorra.