The national flag of the Philippines is a horizontal bicolor with a white equilateral triangle at the hoist. The upper stripe is blue and the lower stripe is red; the white triangle contains a golden-yellow sun with eight primary rays and three five-pointed stars, one near each vertex. The flag's arrangement, colors and symbols are widely recognized as expressions of the country's history, ideals and geographic composition.

Design and symbolism

The flag's principal elements carry specific meanings. The white triangle is commonly interpreted as representing liberty, equality and fraternity, drawing on Enlightenment ideals influential at the time of the flag's creation. The three stars stand for the archipelago's three main island groups: Luzon, the Visayas (often referred to historically by the island of Panay in some accounts), and Mindanao. The sun symbolizes independence and sovereignty; its eight rays are traditionally associated with provinces that played prominent roles in the 1896 revolution against Spanish colonial rule, though lists of the eight provinces vary among historical sources. The colors — blue, red and yellow — also have general associations: peace and justice (white and blue), patriotism and valor (red), and the golden-yellow of the sun and stars evokes freedom and national unity.

Origins and historical development

The flag's design is attributed to Emilio Aguinaldo and first appeared in public in 1898 during the declaration of Philippine independence. Its configuration and symbols were influenced by contemporary revolutionary movements and by the desire to create a distinct national emblem following centuries of colonial rule. Over the following decades the flag was used in diverse political contexts and was later regulated by statutes and administrative rules that set its proportions, colors and proper use. The official aspect ratio commonly used is 1:2.

Use, protocol and special practices

Official law and customary practice govern how the flag may be displayed. It is flown on government buildings, schools and during national events; private display is permitted and often encouraged on national holidays. Standard flag etiquette includes respectful handling, prohibition of its use as apparel or advertising, and rules for lowering it to half-mast in times of national mourning. A distinctive and well-known practice is that the flag may be displayed inverted — with the red stripe above the blue — to signify that the nation is in a state of war. This inversion is an established feature of the flag's symbolism and is applied in peacetime only for that purpose.

There are no separate civil or state variants in regular use; the basic design serves as the national flag. Specific reproductions may vary slightly in exact hue or manufacturing details, but official specifications describe proportions and recommended colors. The legal framework that addresses the flag includes statutes commonly referred to as the Flag and Heraldic Code, which prescribe proper display, manufacture, sale and penalties for desecration. The flag remains a potent national symbol used in ceremonies, international representation and public commemorations.