Tough Nights of Club Indigo (インディゴの夜, Indigo no Yoru) is a 2010 Japanese comic drama
Indigo is a deep color close to the color wheel blue, as well as to some variants of ultramarine, based on the ancient dye of the same name. The word "indigo" comes from the Latin word indicum, meaning "Indian", as the dye was originally exported to Europe from India.
Indigo children, according to a pseudoscientific New Age concept, are children who are believed to possess special, unusual, and sometimes supernatural traits or abilities. The idea is based on concepts developed in the 1970s by Nancy Ann Tappe, who claimed to have been noticing indigo children beginning in the late 1960s. Her ideas were further developed by Lee Carroll and Jan Tober. The concept of indigo children gained popular interest with the publication of a series of books in the late 1990s and the release of several films in the following decade. A variety of books, conferences, and related materials have been created surrounding belief in the idea of indigo children and their nature and abilities. The interpretations of these beliefs range from their being the next stage in human evolution, in some cases possessing paranormal abilities such as telepathy, to the belief that they are more empathetic and creative than their peers.
Indigo dye is an organic compound with a distinctive blue color. Historically, indigo was a natural dye extracted from the leaves of some plants of the Indigofera genus, in particular Indigofera tinctoria; dye-bearing Indigofera plants were commonly grown and used throughout the world, in Asia in particular, as an important crop, with the production of indigo dyestuff economically important due to the previous rarity of some blue dyestuffs historically.
Indigo Girls are an American folk rock music duo from Atlanta, Georgia, United States, consisting of Amy Ray and Emily Saliers. The two met in elementary school and began performing together as high school students in Decatur, Georgia, part of the Atlanta metropolitan area. They started performing with the name Indigo Girls as students at Emory University, performing weekly at The Dugout, a bar in Emory Village.
Takagi is a village located in Nagano Prefecture, Japan. As of 1 April 2019, the village had an estimated population of 6,117 in 2022 households, and a population density of 92 persons per km². The total area of the village is 66.61 square kilometres (25.72 sq mi).
Toranosuke "Tora" Takagi is a Japanese former racing driver.
The Indigo is a Japanese band originally composed of Miki Taoka on vocals, Yuichi Ichikawa on composition and arrangement, and Kenichi Takagi on bass. They were first formed in 1998 and released their debut Maxi single Blue on May 24, 2000. This was followed by their 2nd Maxi Single Kikasete (きかせて) on August 30, 2000, and their first full album Blue on September 27, 2000. Takagi left the band prior to the release of their third album The Indigo have been a duo ever since. They are signed under Geneon Entertainment.
Shingo Takagi is a Japanese professional wrestler, currently signed to New Japan Pro-Wrestling (NJPW), where he is the provisional KOPW 2022 champion in his first reign. He is also a member of the Los Ingobernables de Japón professional wrestling stable.
Tadashi Takagi, better known by his ring name Sanshiro Takagi, is a Japanese professional wrestler. Takagi's gimmick is that he is Stone Cold Steve Austin.
Isao Takagi who goes by the ring name Arashi (嵐), is a Japanese professional wrestler from Moriguchi, Osaka Prefecture, who works for Dradition. He has previously worked for All Japan Pro Wrestling.

Takuya Takagi is a Japanese football manager and former player. He played for Japan national team. He is the manager at SC Sagamihara in the J3 League. He was a physical forward and the Japanese media and fans dubbed him as the Cannon of Asia.
Masato Onodera, better known by his ring name Yamato, is a Japanese professional wrestler and former mixed martial artist currently signed to Dragon Gate, where he is the current Open the Dream Gate Champion in his record-breaking fifth reign.
Takashi Yoshida is a Japanese professional wrestler, best known by his ring name Cyber Kong. He currently wrestles for Dragon Gate under his real name.
The Indigo Tribe is a fictional organization that appears in DC Comics publications, primarily those of the Green Lantern series. In the DC Universe, it is one of the seven major groups known as the Corps of the emotional spectrum. The group was created by comic book writer Geoff Johns and comic book artist Ethan Van Sciver. It made its debut in the issue #25 of Green Lantern in December 2007.
Shinpei Takagi is a Japanese former actor from Seto, Aichi. He is the twin brother of actor Manpei Takagi; both are affiliated with Stardust Promotion.
Nana Takagi is a Japanese speed skater who is a member of the Nidec Sankyo speed skating team.
Miho Takagi is a Japanese speed skater. She has won a total of seven medals at the Olympics, two of them gold.
Teasing Master Takagi-san is a Japanese manga series written and illustrated by Sōichirō Yamamoto. The series features the daily life of Takagi, who loves to tease her classmate Nishikata, and Nishikata's failed attempts to get back at her. In North America, the manga is licensed by Yen Press.
Sōichirō Yamamoto is a Japanese manga artist. He is known for writing and illustrating Teasing Master Takagi-san, In the Heart of Kunoichi Tsubaki, and When Will Ayumu Make His Move?.
Teasing Master Takagi-san: The Movie is a 2022 Japanese animated film based on an original story featuring the characters of Teasing Master Takagi-san manga series and its spin-off Tomorrow Is Saturday, both written and illustrated by Sōichirō Yamamoto. It is a direct sequel to the third season of the anime series. Produced by Shin-Ei Animation and distributed by Toho Visual Entertainment, the film is directed by Hiroaki Akagi from a script written by Hiroko Fukuda, Aki Itami, and Kanichi Katō. In the film, Takagi and Nishikata spend the last summer of their third year in junior high school.