The flag of Nauru has an aspect ratio of 1:2 and features a blue background with a thin yellow stripe and a white, 12-pointed star below it. The color codes for the flag are:

• Blue (Pantone 300): #0066CC
• Yellow (Pantone 116): #FFD700
• White: #FFFFFF

The yellow stripe is located 1/24th of the way down from the top edge of the flag and has a width equal to 1/24th of the flag's height. The white star is situated directly below the yellow stripe, with one of its points touching the stripe. The star's diameter is equal to half the flag's height, and each of its points represents one of Nauru's 12 original tribes.