Air Force blue
A medium blue-green shade linked to air force uniforms and flags
Air Force blue is a medium blue-green colour, most often seen in the uniforms and insignia of air forces. The shade became known through the British Royal Air Force in 1920, and similar tones are used by air forces in several countries. It is based on azure, with some versions appearing darker or lighter depending on the nation.
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- First used for British Royal Air Force uniforms in 1920
- Based on surplus cloth originally intended for Russian cavalry
- Specified as Pantone 549 C for the RAF and Pantone 287 for the US Air Force
- Adopted by air forces in the UK, US, Australia, New Zealand, and Canada
What colour is Air Force blue?
Air Force blue covers a group of blue-green shades, usually based on the colour called azure. The most recognised version is a medium tone, neither very dark nor very pale. This colour stands out from other blues because it is closely tied to military dress and symbols, especially those of air forces.
Where does Air Force blue come from?
The name 'Air Force blue' comes from its use in air force uniforms and flags, starting with the Royal Air Force in Britain after 1920. The choice of this colour was due to a surplus of blue cloth originally meant for Russian cavalry uniforms. Over time, similar shades were adopted by other air forces, making the colour a symbol of military aviation.
How Air Force blue is defined
Air Force blue is not a pigment but a standardised colour used for textiles and insignia. The British RAF version is specified by Pantone 549 C, while the United States Air Force uses Pantone 287. The colour is produced by dyeing fabrics to match these standards.
Where Air Force blue is used
This colour is most often seen in the uniforms, flags, and vehicles of air forces. The British, American, Australian, New Zealand, and Canadian air forces all use their own versions. It is also found in the insignia and ceremonial dress of air force personnel.
Blue around the world
What the blue family means from country to country.
To be true blue is to be honestly and loyally Australian. The phrase is older than the country, but Australians have made it their own.
Politics and protestTrustSource: True Blue (John Williamson song)The Torres Strait Islander flag has a blue band for the sea between green bands for the land. A white dhari, a dancer's headdress, sits at the centre.
Politics and protestNature and renewalSource: Torres Strait Islander flagAt Oxford and Cambridge a blue is the award given to those who represent the university in sport. Oxford's is dark blue and Cambridge's light blue, as worn in the Boat Race.
Festival and celebrationPrideSource: Blue (university sport)The flag's colours have no official meaning. For the Great Seal of 1782, though, blue was said to stand for vigilance, perseverance and justice, white for purity and red for hardiness and valour.
Politics and protestTrustSource: Flag of the United StatesLapis lazuli has been mined in the mountains of Badakhshan for more than six thousand years. Ground to powder it gave ultramarine, the costliest blue in European painting.
Royalty and powerSacred and holyAweSource: Lapis lazuliThe chadari is a full-length covering for women with a mesh panel over the eyes. In Kabul and the north it is most often a light blue.
Protection and healingSource: BurqaShades and relatives of Air Force blue
There are several versions of Air Force blue. The Royal Air Force uses a medium azure, while the US Air Force and its Academy have their own darker or subtly different shades. Other countries' air forces use a range of blue tones, from lighter to deeper, but all are grouped under the general idea of Air Force blue.
Colours that go with Air Force blue
Harmonies are worked out from the value #5D8AA8. Contrast ratios follow the WCAG 2 formula.
Questions people ask about Air Force blue
What colour is Air Force blue?
Air Force blue is a medium blue-green shade, often described as a tone of azure. It is neither very dark nor very light, and is most familiar from air force uniforms and flags.
Where does the name Air Force blue come from?
The name comes from its use in air force uniforms and insignia, beginning with the British Royal Air Force in 1920. The colour was chosen due to a surplus of blue cloth after the Russian Revolution.
Do all air forces use the same Air Force blue?
No, different air forces use their own versions. The British RAF, US Air Force, and others each have slightly different shades, but all are based on blue-green tones known as Air Force blue.
Is Air Force blue a pigment or a dye?
It is not a specific pigment or dye, but a colour standard used for uniforms and insignia. The shade is matched using textile dyes to meet set colour codes like Pantone 549 C or 287.
Good reading and sources
The facts on this page come from the Wikipedia article "Air Force blue", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). Rang rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes. The swatch is an approximation: named colours are not fixed standards, and every screen shows them a little differently. If something is wrong, tell us. Last refreshed 2026-10-03.
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