Mural at a Chelsea pub in Tashkent

the racing colours of then club president, Earl Cadogan, and was worn with white shorts and dark blue or black socks.[60] The light blue shirts were replaced by a royal blue version in around 1912.[61] In the 1960s Chelsea manager Tommy Docherty changed the kit again, switching to blue shorts (which have remained ever since) and white socks, believing it made the club's colours more modern and distinctive, since no other major side used that combination; this kit was first worn during the 1964–65 season.[62] Since then Chelsea have always worn white socks with their home kit apart from a short spell from 1985 to 1992, when blue socks were reintroduced.
Chelsea's traditional away colours are all yellow or all white with blue trim, but, as with most teams, they have had some more unusual ones. The first away strip consisted of black and white stripes and for one game in the 1960s the team wore blue and black stripes, inspired by Inter Milan's kit, again at Docherty's behest.[63] Other memorable away kits include a mint green strip in the 1980s, a red and white checked one in the early 90s and a graphite and tangerine edition in the mid-1990s.[64]
Support



Chelsea fans at a match against Tottenham Hotspur, on 11 March 2006
Chelsea have the fifth highest average all-time attendance in English football[8] and regularly attract over 40,000 fans to Stamford Bridge; they were the sixth best-supported Premier League team in the 2012–13 season, with an average gate of 41,462.[9] Chelsea's traditional fanbase comes from all over the Greater London area including working-class parts such as Hammersmith and Battersea, wealthier areas like Chelsea and Kensington, and from the home counties. There are also numerous official supporters clubs in the United Kingdom and all over the world.[65] In 2012 Chelsea were ranked fourth worldwide in annual replica kit sales, with 910,000.[66] At matches, Chelsea fans sing chants such as "Carefree" (to the tune of Lord of the Dance, whose lyrics were probably written by supporter Mick Greenaway[67][68]), "Ten Men Went to Mow", "We All Follow the Chelsea" (to the tune of "Land of Hope and Glory"), "Zigga Zagga", and the celebratory "Celery", with the latter often resulting in fans ritually throwing celery. The vegetable was banned inside Stamford Bridge after an incident involving Arsenal midfielder Cesc Fàbregas at the 2007 League Cup Final.[69]


Mural at a Chelsea pub in Tashkent
During the 1970s and 1980s in particular, Chelsea supporters were associated with football hooliganism. The club's "football firm", originally known as the Chelsea Shed Boys, and subsequently as the Chelsea Headhunters, were nationally notorious for football violence, alongside hooligan firms from other clubs such as West Ham United's Inter City Firm and Millwall's Bushwackers, before, during and after matches.[70] The increase of hooligan incidents in the 1980s led chairman Ken Bates to propose erecting an electric fence to deter them from invading the pitch, a proposal that the Greater London Council rejected.[71] Since the 1990s there has been a marked decline in crowd trouble at matches, as a result of stricter policing, CCTV in grounds and the advent of all-seater stadia.[72] In 2007, the club launched the 'Back to the Shed' campaign to improve the atmosphere at home matches, with notable success. According to Home Office statistics, 126 Chelsea fans were arrested for football-related offences during the 2009–10 season, the third highest in the division, and 27 banning orders were issued, the fifth highest in the division.[73]
Rivalries