As to the background, the deep blue symbolizes the ocean, and the light blue stands for the blue sky. Therefore this logo explains what a quiet and pretty ocean paradise Penghu is with its grand ocean and the beautiful sky.
The logo as a whole symbolizes the Structure of Penghu. There is a lake inside the island, therefore outside the lake we see passionate waves while inside the lake water is as peaceful as a mirror. Also in the county, there is a famous big bridge across the ocean and five lighthouses named: Donji, Xiyu, Mudouyu, Chamuyu, Huaui. All these five lighthouses stand firmly in the Taiwan straits and shine with splendor to show the spirit and characteristics of Penghu.