Editing Indigo (section)

== In culture ==
=== Business ===
* [[IndiGo]] is an Indian budget airline that uses an indigo logo and operates only [[Airbus A320]]s.
* [[Indigo Books and Music]] uses an indigo logo and has sometimes referred to the color as "blue" in advertising.<ref>"It's New and It's Blue" (Indigo advertisement), ''[[The Globe and Mail]]'', Toronto, 1 October 1999, p.&nbsp;A3</ref><ref>"Indigo Bookstore had a 'Think Blue' campaign back in 1999" according to: {{cite web|title=Think Blue 2008: a Before and After Tale of Silly Turf Battles and Redemptive Communication|url=http://www.irregulartimes.com/thinkblue2008.html|access-date=4 February 2013|archive-date=10 May 2012|archive-url=https://web.archive.org/web/20120510202417/http://www.irregulartimes.com/thinkblue2008.html|url-status=usurped}}{{better source needed|date=February 2013}}</ref>
* The [[GameCube]] was initially released in two color variants. One bore the title of 'Indigo', with the main console and controllers in that color.

=== Computer graphics ===
* Electric indigo is sometimes used as a glow color for [[computer graphics lighting]], possibly because it seems to change color from indigo to [[lavender (color)|lavender]] when blended with white.

=== Dyes ===
{{further|Indigo dye#History of indigo}}
[[File:COLLECTIE TROPENMUSEUM Indigo wordt aangemaakt in kuilen in uitgehakte puimsteentufgrond Karolanden TMnr 10014190.jpg|thumb|Indigo is created in potholes carved in pumice "tufgrond" in [[Karo Regency|Karoland]], [[Sumatra]].]]
* Indigo dye was used to dye denim, giving the original '[[Jeans|blue jeans]]' their distinctive colour.
* The original Postal Worker uniform contained indigo dye, partly due to the dye not running when wet.<ref>{{cite web |last1=Hejna |first1=Jamie |title=What Color is Indigo? |url=https://freelancefaucet.com/answered/what-color-is-indigo/ |website=Freelance Faucet |date=19 February 2023 |access-date=19 February 2023 |archive-date=19 February 2023 |archive-url=https://web.archive.org/web/20230219153939/https://freelancefaucet.com/answered/what-color-is-indigo/ |url-status=live }}</ref>
* [[Guatemala]], as of 1778, was considered one of the world's foremost providers of indigo.<ref name="Kitchin">{{cite book|last=Kitchin|first=Thomas|title=The Present State of the West-Indies: Containing an Accurate Description of What Parts Are Possessed by the Several Powers in Europe|year=1778|publisher=R. Baldwin|location=London|page=30|url=http://www.wdl.org/en/item/4397/view/1/30/|access-date=30 August 2013|archive-date=19 October 2013|archive-url=https://web.archive.org/web/20131019122932/http://www.wdl.org/en/item/4397/view/1/30/|url-status=live}}</ref>
* In Mexico, indigo is known as ''[[Indigofera suffruticosa|añil]]''.<ref>Gallego, Rosa; Sanz, Juan Carlos (2001). Diccionario Akal del color. Akal. {{ISBN|978-84-460-1083-8}}.</ref> After silver, and [[cochineal]] to produce red, ''añil'' was the most important product exported by historical Mexico.<ref>Article „añil" in: ''Enciclopedia de México'', vol 1, Mexiko-City: Secretaría de Educacion Pública, 1987</ref>
* The use of ''añil'' is survived in the Philippines, particularly in the Visayas and Mindanao. The powder dye is mixed with vinegar to be applied to the cheek of a person suffering from mumps.{{citation needed|date=May 2019}}

=== Food ===
* Scientists discovered in 2008 that when a [[banana]] becomes ripe, it glows bright indigo under a [[black light]]. Some insects, as well as birds, see into the [[ultraviolet]], because they are [[Tetrachromacy|tetrachromats]] and can use this information to tell when a banana is ready to eat. The glow is the result of a chemical created as the green [[chlorophyll]] in the peel breaks down.<ref>{{cite magazine |first= Rachel |last= Zurer |title= Three Smart Things About Banana Peels |url= https://www.wired.com/2011/09/st_3st_banana/ |access-date= 28 February 2020 |magazine= [[Wired (magazine)|Wired]] |df= mdy-all |archive-date= 28 February 2020 |archive-url= https://web.archive.org/web/20200228213507/https://www.wired.com/2011/09/st_3st_banana/ |url-status= live }}</ref>

=== Literature ===
Marina Warner's novel ''[[Indigo (Warner novel)|Indigo]]'' (1992) is a retelling of Shakespeare's ''[[The Tempest]]'' and features the production of indigo dye by Sycorax.

=== Military ===
The [[French Army]] adopted dark blue indigo at the time of the [[French Revolution]], as a replacement for the white uniforms previously worn by the Royal infantry regiments. In 1806, [[Napoleon]] decided to restore the white coats because of shortages of [[indigo dye]] imposed by the British continental blockade. However, the greater practicability of the blue color led to its retention, and indigo remained the dominant color of French military coats until 1914.{{citation needed|date=August 2021}}

=== Popular culture ===
In the ''[[Better Call Saul]]'' episode "[[Hero (Better Call Saul)|Hero]]", Howard Hamlin mentions that his law firm Hamlin Hamlin & McGill trademarked a colour called "Hamlindigo" whilst confronting Jimmy McGill over trademark infringement in a billboard advertisement he produced for his own legal services.

=== Spirituality ===
The [[Spiritualism (movement)|spiritualist]] applications use [[#Electric indigo|electric indigo]], because the color is positioned between [[blue]] and [[Shades of violet#Electric violet|violet]] on the spectrum.<ref>Tansley, David W. ''Subtle Body: Essence and Shadow'' 1984 (Art and Cosmos Series--[[Jill Purce]], editor)</ref>
* The color electric indigo is used in [[New Age]] philosophy to symbolically represent the sixth ''[[chakra]]'' (called ''[[Ajna]]''), which is said to include the [[third eye]]. This ''chakra'' is believed to be related to [[intuition]] and [[gnosis]] (spiritual knowledge).<ref>Stevens, Samantha. The Seven Rays: a Universal Guide to the Archangels. City: Insomniac Press, 2004. {{ISBN|1-894663-49-7}} pg. 24</ref><ref>Graham, Lanier F. (editor) ''The Rainbow Book'' Berkeley, California:1976 Shambala Publishing and The Fine Arts Museums of San Francisco (Handbook for the Summer 1976 exhibition ''The Rainbow Art Show'' which took place primarily at the [[De Young Museum]], but also at other museums) ''Indigo'' Pages 152–153 The color indigo is stated to represent intuition.</ref>
* [[Alice Bailey|Alice A. Bailey]] used indigo as the "second ray", representing "Love-Wisdom", in her [[Seven Rays]] system classifying people into seven metaphysical [[psychological type]]s.<ref>{{cite book|last=Bailey|first=Alice A.|author-link=Alice Bailey|title=The Seven Rays of Life|location=New York|year=1995|publisher=Lucis Publishing Company|isbn=978-0-85330-142-4}}</ref>
* [[Psychic]]s often associate indigo [[Aura (paranormal)|paranormal auras]] with an interest in [[religion]] or with intense [[spirituality]] and intuition. [[Indigo children]] are said to have predominantly indigo auras. People with indigo auras are said to favor occupations such as [[Computer analyst (disambiguation)|computer analyst]]<!-- dab link intentional -->, [[Animal husbandry|animal caretaker]], and [[Licensed professional counselor|counselor]].<ref>Oslie, Pamalie ''Life Colors: What the Colors in Your Aura Reveal'' Novato, California:2000--New World Library Indigo Auras: Pages 161–174</ref>
* In [[Wicca]], it represents emotion, fluidity, insight, and expressiveness. It is used to spiritually heal.<ref>{{Cite web|title=Magical Properties of Colors|url=https://wiccaliving.com/magical-properties-colors/|access-date=2021-01-28|website=Wicca Living|language=en-US|archive-date=22 January 2021|archive-url=https://web.archive.org/web/20210122023531/https://wiccaliving.com/magical-properties-colors/|url-status=live}}</ref>