Introduction
The national flag of Thailand, known as the Trairanga (meaning tricolor), is a distinctive five horizontal stripe design. It features a unique sequence of colors: red, white, blue, white, and red, with the central blue band being twice the width of the other four stripes. This arrangement creates a balanced and instantly recognizable national symbol that is flown across the country.
The flag's design is a tricolor variant, but its five-stripe layout sets it apart from more common three-band tricolors. The proportions of the stripes are strictly defined, with the middle blue stripe occupying half of the flag's total width. This precise construction ensures consistency in its display on official buildings, during national holidays, and in international settings.
Adopted in the early 20th century, the Trairanga replaced a simpler red field flag featuring a white elephant. The introduction of the color blue was a significant modernization, symbolizing the monarchy and aligning the flag with a period of national renewal. Today, it is a powerful emblem of Thai unity and sovereignty.
Meaning & Symbolism
The colors of the Thai flag carry deep symbolic meaning rooted in national identity. The color red represents the nation and the blood of life shed for Thailand's independence. The color white symbolizes the purity of the Buddhist faith, which is the predominant religion and a central pillar of Thai culture and law.
The central blue stripe, which is the widest, represents the monarchy. This color was specifically chosen to honor King Rama VI (Vajiravudh), who promulgated the flag, and to show solidarity with the Allies in World War I, as blue featured in the flags of several allied nations like France, the United Kingdom, and Russia. Together, the trio of nation, religion, and king forms the unofficial motto of Thailand and is deeply embedded in the flag's symbolism.
History of the Thailand Flag
The first official national flag of Siam (now Thailand) was a plain red field, adopted in the late 17th century under King Narai. In 1855, King Mongkut (Rama IV) added a white chakra (a Buddhist wheel) to the center, and later replaced it with a white elephant inside the chakra, creating a more complex design.
The current five-stripe Trairanga was introduced by King Vajiravudh (Rama VI) by royal decree on September 28, 1917. The change was made partly for practical reasons, as the elephant flag was difficult to reproduce correctly, and partly for modern symbolic reasons, introducing the color blue. The design has remained unchanged since its adoption, solidifying its status as a enduring national symbol.
Curiosities
- The flag's official name, 'Trairanga', literally translates to 'tricolor' in Thai, despite the flag having five stripes.
- Thailand's flag is one of the few national flags in the world where the central stripe is double the width of the stripes above and below it.
- On September 28th, the anniversary of the flag's adoption in 1917, Thailand celebrates National Flag Day.
Download Flag
Download the flag of Thailand in high-quality SVG vector format or PNG raster images. SVG files can be scaled to any size without losing quality.
Construction Sheet
The flag's construction is precisely defined. The overall proportions are 2:3 (width to length). The flag is divided into five horizontal stripes. The top, second, fourth, and bottom stripes are of equal width, each being 1/6 of the total flag height. The central blue stripe is 2/6 (or one-third) of the total flag height, making it twice as wide as each of the other four stripes.
Flags Similar to Thailand Flag
Common Misidentifications
Often confused from a distance with the flag of Costa Rica due to the identical five-stripe structure, though the color order is different (Costa Rica: blue-white-red-white-blue).