The club had their first major success in 1955, when they won the league championship. Chelseawon several cup competitions during the 1960s and 1970s, but after that did not win another major title until 1997. The past decade has been the most successfulperiod in Chelsea’s history, capped by winning Premier League titles in 2005, 2006 and 2010, the latter as part of their first league and FA Cup "Double".Despite their name, the club is not based in Chelsea, but in neighbouring Fulham. The club's home is the 42,449 capacity Stamford Bridge football stadium in Fulham,where they have played since their establishment. Since 2003 they have been owned by Russian billionaire Roman Abramovich.
Chelsea's regular kit colours areroyal blue shirts and shorts with white socks, the combination used since the 1960s. The club crest has been changed several times in attempts to modernise orre-brand; the current crest, featuring a ceremonial lion holding a staff, is a modified version of one first adopted in the 1950s. The club has sustained the fifthhighest average all-time attendance in English football. Their average home gate for the 2010–11 season was 41,435, the sixth highest in the Premier League.