The colors and symbols of the flag carry cultural, political, and regional meanings. The blue evokes the water, as well as its significance to the country in the form of rivers, rain, and the Pacific Ocean. The green alludes to the land, along with the trees and crops that grow on it. The yellow epitomizes the sun and its rays separating the land and the ocean.
The five stars are arranged in three offset rows at the canton, in the shape of the letter X. At first, these were meant to symbolize the provinces that the country was subdivided into at the time of independence. Even though new provinces have since been created, the number of stars has remained unchanged.