Colour has repeatedly served as a fast, visible way to signal allegiance — in military uniforms historically, in the flags and rosettes of political movements, and in protest clothing chosen deliberately for visibility and solidarity.
Red has been used historically as a military uniform colour by various armies, including British 'redcoats', valued in part for visibility and the ability to distinguish friend from foe at a distance in the era before modern camouflage doctrine.
Notable use · Britain and other historical military powers · before modern camouflage doctrine
Political movements have long used specific colours as identifying symbols — red for various socialist and labour movements historically, for example — a practice that continues in modern political branding.
Notable use · global · 19th century onward
High-visibility colour choices in modern protest movements (such as specific coloured clothing or symbols adopted for a demonstration) serve a similar function to historical uniform colour: fast visual identification of a group at a distance.
Modern use
A colour works as a badge when it is cheap to reproduce, easy to see in a crowd and already carries a reading the group can use. The documented cases show how deliberate this usually is. The Women's Social and Political Union's scheme was devised by one named person in 1908, published with stated meanings and sold as merchandise within months. Choices were also fought over: in Paris in February 1848 the crowd proclaiming the republic wanted an all-red flag, and it took a speech to keep the tricolour. A flag can even be designed as an argument, as when the Irish tricolour set a white band between two colours that stood for opposed communities. 1, 2, 3
| When | Where | What happened | Sources |
|---|---|---|---|
| 1795 | Belfast, Ireland | A Protestant political society was founded and named for William of Orange; its members are recorded as 'Orangemen' the following year, and the colour followed the name. | 4 |
| 1814 to 1830 | France | The restored monarchy stripped blue and red from the flag and flew royal white alone; the tricolour came back in the July days of 1830. | 2 |
| 1846 | India | Dust-coloured cloth was introduced for the Guide Corps; 'khaki', from an Urdu word meaning dusty, is recorded in English from 1857. | 4 |
| 25 February 1848 | Paris | As the republic was proclaimed, insurgents called for a red flag; Lamartine argued that red was the flag of a party and the tricolour the flag of France, and the tricolour stayed. | 2 |
| 7 March 1848 | Waterford, Ireland | Thomas Francis Meagher first flew a tricolour of green, white and orange from 33 The Mall. | 3 |
| 1899–1902 | South Africa | Khaki was widely adopted for concealment in the Boer Wars, and the word acquired overtones of militarism. | 4 |
| 21 June 1908 | United Kingdom | Purple, white and green regalia were worn for the first time, by the leaders only, at the suffragette rally called Women's Sunday. | 1 |
| 22 November 2004 to 23 January 2005 | Kyiv, Ukraine | Orange-clad demonstrators filled Independence Square after a disputed presidential run-off, in protests that took their name from the colour. | 5 |
Claim: The suffragette colours were green, white and violet, an acrostic for 'Give Women Votes'.
Evidence: Not supported by the museum record. London Museum attributes the scheme to Emmeline Pethick-Lawrence in 1908 and quotes her own explanation: purple as the royal colour, for freedom and dignity; white for purity in private and public life; green for hope and the emblem of spring. No acrostic appears in it. 1
Historical claims above are scoped to a specific period, region or culture where relevant — none are presented as a single universal fact. See methodology.