Why Are Chelsea Called the Blues?

Chelsea are called the Blues because blue has been the club’s defining shirt color since its earliest seasons. The nickname refers to the team’s visual identity, rather than to a particular result, player or style of soccer. There is a small historical twist, however: Chelsea’s first blue was much paler than the royal blue familiar to supporters today, and the club was originally widely known by another nickname, the Pensioners.

Chelsea’s own account of its founding places the club’s creation on March 10, 1905, in the Rising Sun pub opposite Stamford Bridge. The pub is now called the Butcher’s Hook. Even the club’s name involved a choice: Kensington FC, London United and Stamford Bridge FC were among the alternatives discussed. Chelsea became the name, while the colors and nicknames developed into separate parts of the new club’s identity.

The original shirts were Eton blue. According to the club’s historical explanation, this color came from the horse-racing silks of Lord Cadogan, a local landowner and Chelsea’s first president. The early matchday publication described the shirts as light blue. This means that a modern royal-blue jersey is part of a long blue tradition, but is not an exact reproduction of the shade worn by the first Chelsea team.

The lighter color lasted for the first two seasons. Chelsea dates the introduction of its royal-blue shirts to the 1907–08 season. That distinction matters because club colors are sometimes described as though they were fixed in every detail from the beginning. In Chelsea’s case, the broad association with blue survived a noticeable change of shade. The recognizable identity developed through continuity and alteration together.

The earlier Pensioners nickname had a different source. It referred to the famous residents of the nearby Royal Hospital Chelsea. The club’s account describes an early debate in its matchday publication over possible nicknames, including names connected with local products and other suggestions. The publication eventually settled on the Pensioners. Unlike the Blues, this name pointed to a neighboring institution rather than the color of the playing shirts.

The two names therefore tell different parts of the same story. Pensioners reflects the club’s local surroundings, while Blues describes something spectators could recognize on the field. A color nickname does not need a complicated explanation to work: once a team is consistently associated with a color, the color can become a short way to refer to the players and their supporters. It is an identity rather than a literal description of every outfit.

Chelsea associates the move away from the Pensioners identity with manager Ted Drake. In its explanation of a recent home kit, the club credits him with replacing that nickname with the Blues and introducing the familiar lion symbol. Chelsea’s separate history of the lion badge says its design drew partly on the coat of arms of the Metropolitan Borough of Chelsea. The new emblem still had local roots, even as the club changed its presentation.

The rest of the uniform also evolved. Chelsea’s account of manager Tommy Docherty describes his introduction of blue shorts and white socks, replacing the earlier combination of white shorts and blue socks. The blue shirt was already established, so this was a change to the complete arrangement rather than the invention of Chelsea’s blue identity. Shirt, shorts and socks can each carry a different part of a club’s visual history.

Alternative uniforms do not cancel that history. Chelsea’s 2023–24 third kit, for example, used a mint-colored design that the club linked partly to its original Eton blue and partly to an away kit from 1986–87. A modern change of shade can therefore be a reference to the past, rather than a rejection of it. When a match report calls Chelsea the Blues, it is naming the club, not promising that every player is wearing royal blue that day.

Sources: Chelsea FC: Five facts about Chelsea’s founding; Chelsea FC: The history behind the lion badge; Chelsea FC: The Story of Chelsea, Chapter 4; Chelsea FC: Kit history and Ted Drake’s influence; Chelsea FC: Eton blue and the 2023–24 third kit