Overview

A tricolour (or tricolor) is most commonly a flag or banner made from three distinct colours. The simplest form is three parallel bands of colour arranged together to form a single, unified field. Tricolours are a widespread class of national and political flags and are often referred to by the number of colours they display rather than by a particular design. The term applies to the plain three-band layout as well as to variants that include additional emblems, coats of arms, or other symbols.

Structure and types

Tricolours are usually composed of three stripes that can be oriented in different ways. The principal orientations are horizontal, vertical and diagonal. A horizontal stripe runs left to right across the flag; a vertical stripe runs top to bottom; and a diagonal stripe runs neither purely across nor up and down. Bands may be equal in width or unequal, and some tricolours are defaced by adding a seal, emblem, or other device.

History and development

Tricolour flags became especially prominent in the age of modern nation-states. The adoption of three-colour banners is often associated with revolutionary and national movements in the late 18th and 19th centuries, when simple, bold designs were favoured as symbols of new political identities. Over time the basic three-band layout proved adaptable, easy to reproduce and recognisable at a distance, which helped its popularity among emerging nations and reform movements.

Examples and variations

  • Several well-known national flags use three equal bands in a tricolour format; these include flags with vertical bands and flags with horizontal bands.
  • Many tricolours are modified by the addition of emblems, stars or coats of arms in one panel; naval ensigns and regional flags also employ three colours in varied layouts.
  • The term can also be applied more broadly to banners and political standards beyond national flags, including historical banners and party colours.

Meaning and uses

Colours on tricolours are often assigned symbolic meanings, but interpretations vary widely and are sometimes applied after adoption. Common themes include liberty, unity, religious or regional identity, and historical associations. Tricolour flags serve practical purposes as national symbols, ensigns for maritime use, rallying devices for movements, and elements of civic and military protocol.

Distinctions and notable facts

Although many flags with three colours are called tricolours, not every three-colour flag follows the strict three-band layout. Flags with three colours arranged in other patterns or containing many small elements are usually described by their full design names. The word appears in several languages and often carries historical resonance; for more on the general concept of flags and banners see the entries on flag and banner. For additional reading about stripe orientations and design conventions consult resources on flag terminology at vertical, horizontal and diagonal patterns.

Note: While many national flags are tricolours, each design has its own history and legal status; some countries specify exact shades, proportions and placements in law or regulation, and some allow variations for civil, state and naval use.