The flag of Kiribati has an aspect ratio of 1:2. It consists of a red upper half and a blue lower half, separated by a yellow frigatebird flying over a yellow rising sun with 17 rays. The sun is centered on the red-blue boundary, and the bird is above it.

Color codes:

• Red: Pantone 186 C, HEX #C8102E
• Blue: Pantone 286 C, HEX #0033A0
• Yellow: Pantone 116 C, HEX #FFCD00

Geometric properties:

• The sun's diameter is half the flag's height.
• Each ray of the sun extends from the sun's circumference to the edge of the flag.
• The frigatebird's wingspan is equal to the sun's diameter.

Measurements:

• Flag width: W
• Flag height: H = W/2
• Sun diameter: D = H/2
• Distance from the left edge of the flag to the center of the sun: W/2