The Portuguese flag features green and red vertical bands with the national coat of arms — including an armillary sphere — on the dividing line. It was adopted shortly after the 1910 republican revolution.
The design
The Flag of Portugal is a national emblem rendered in the colours and proportions defined by the country’s flag law. Its official aspect ratio is 2:3, the height-to-length ratio that fixes how the flag should be cut and flown. The colour scheme uses Green, Red, Yellow, Blue, White, with each shade specified to particular Pantone or RGB values for official reproduction.
Colour palette
| Colour | Name | Common symbolism |
|---|---|---|
| Green | Green | Tends to evoke land, agriculture, hope, Islam or the natural environment. |
| Red | Red | Often signifies courage, sacrifice, revolution or the blood of those who fought for the nation. |
| Yellow | Yellow | Usually denotes wealth, the sun, gold reserves, or a generous spirit. |
| Blue | Blue | Frequently symbolises sky, sea, freedom, vigilance or perseverance. |
| White | White | Commonly represents peace, purity, honesty or snow-capped landscapes. |
Symbolism & heraldry
Green represents hope and the future; red the blood of those who died for the country; the armillary sphere represents Portugal's maritime explorations.
Heraldic elements on the Flag of Portugal — bands, charges, emblems or stars — each carry meaning agreed at the moment of the flag’s adoption. Re-readings happen across generations: a colour or a symbol that began with one meaning often picks up further layers as the country’s history unfolds.
Adoption & history
The current flag was adopted in 1911. Earlier banners flown by Portugal reflected the politics of their day; each redesign typically marked a moment of independence, regime change or constitutional reform. The current flag was chosen, debated and codified through the country’s official channels and is now protected by flag law.
Etiquette & protocol
The Flag of Portugal should be flown with respect: never allowed to touch the ground, never used as drapery for ceremonies it was not made for, and lowered or removed at sundown unless illuminated. When flown alongside other national flags, it takes precedence on home soil and is hoisted first and lowered last. On days of national mourning, the flag is flown at half-mast in line with directives from the head of state. These conventions are common to most nations and are usually written into the flag’s founding statute.
Specifications
| Field | Value | Note |
|---|---|---|
| Country | Portugal | — |
| Continent | Europe | — |
| ISO alpha-2 | PT | 2-letter code |
| ISO alpha-3 | PRT | 3-letter code |
| Adopted | 1911 | year of current design |
| Proportion | 2:3 | height : length |
| Colours | Green, Red, Yellow, Blue, White | — |
| Designer | — | |
| Emoji | 🇵🇹 | Unicode codepoint sequence |
Did you know?
The armillary sphere is a Portuguese-invented navigational instrument that helped fuel the Age of Discovery.
