Military camouflage
Further advances in aircraft camouflage are being investigated in the field of active camouflage.

In fashion and art: 

Fashion and the "Dazzle Ball": The transfer of camouflage patterns from battle to exclusively civilian uses is not recent. Dazzle camouflage inspired a trend of dazzlesque patterns used on clothing in England, starting in 1919 with the "Dazzle Ball" held by Chelsea Arts Club. Those attending wore dazzle-patterned black and white clothing, influencing twentieth-century fashion and art via postcards (see illustration) and magazine articles. The Illustrated London News announced

The scheme of decoration for the great fancy dress ball given by the Chelsea Arts Club at the Albert Hall, the other day, was based on the principles of 'Dazzle', the method of 'camouflage' used during the war in the painting of ships ... The total effect was brilliant and fantastic.

Camouflage in art: While many artists helped to develop camouflage during and since World War I, the disparate sympathies of the two cultures restrained the use of "militaristic" forms other than in the work of war artists. Since the 1960s, several artists have exploited the symbolism of camouflage. For example, Andy Warhol's 1986 camouflage series was his last major work, including Camouflage Self-Portrait. Alain Jacquet created many camouflage works from 1961 to the 1970s. Ian Hamilton Finlay's 1973 Arcadia was a screenprint of a leafily-camouflaged tank, "an ironic parallel between this idea of a natural paradise and the camouflage patterns on a tank", as the Tate Collection describes it. Veruschka, the pseudonym of Vera von Lehndorff and Holger Trülzsch, created "Nature, Signs & Animals" and "Mimicry-Dress-Art" in 1970–1973. Thomas Hirschhorn made Utopia : One World, One War, One Army, One Dress in 2005.

War protesters and fashionistas: In the US in the 1960s, military clothing became increasingly common (mostly olive drab rather than patterned camouflage); it was often found worn by anti-war protestors, initially within groups such as Vietnam Veterans Against the War but then increasingly widely as a symbol of political protest.
Fashion often uses camouflage as inspiration – attracted by the striking designs, the "patterned disorder" of camouflage, its symbolism (to be celebrated or subverted), and its versatility. Early designers include Marimekko (1960s), Jean-Charles de Castelbajac (1975–), Stephen Sprouse (using Warhol prints, 1987–1988), and Franco Moschino (1986), but it was not until the 1990s that camouflage became a significant and widespread facet of dress from streetwear to high-fashion labels – especially the use of "faux-camouflage". Producers using camouflage in the 1990s and beyond include: John Galliano for Christian Dior, Marc Jacobs for Louis Vuitton, Comme des Garçons, Chanel, Tommy Hilfiger, Dolce & Gabbana, Issey Miyake, Armani, Yves Saint-Laurent.
Companies closely associated with camouflage patterns include 6876, A Bathing Ape, Stone Island, Stüssy, Maharishi, mhi, Zoo York, Addict, and Girbaud, using and overprinting genuine military surplus fabric; others use camouflage patterns in bright colours such as pink or purple. Some, such as Emma Lundgren and Stüssy, have created their own designs or integrated camouflage patterns with other symbols.

Restrictions: Some countries such as Barbados, Aruba, and other Caribbean nations have laws prohibiting camouflage clothing from being worn by non-military personnel, including tourists and children. Civilian possession of camouflage is still banned in Zimbabwe.

See also: Camouflage (1944 film), World War II camouflage training film produced by the US Army Air Forces
List of military clothing camouflage patterns

Notes: 

References: 

Sources: 

External links: 
"Abbott Thayer's Camouflage Demonstrations: Countershading, Disruption and Background Picturing"
Shipcamouflage.com
Roy R. Behrens – Art and Camouflage: An Annotated Bibliography
Guy Hartcup – Camouflage: A History of Concealment and Deception in War (1980)
WWII War Department Field Manual FM 5-20B: Camouflage of Vehicles (1944)
The Evolution of Tank Camouflage The Tank Museum
Patterns compared
Camouflage paint colours
Cécile Coutin: Camouflage, in: 1914-1918-online. International Encyclopedia of the First World War.
John Ramm: [Hidden Talent: Graham Clilverd War Artist in Antique Collecting, September 2023, pp 24-27]