 Chelsea 's regular kit colours are royal blue shirts and shorts with white socks . The club 's crest has been changed several times in attempts to re @-@ brand the club and modernise its image . The current crest , featuring a ceremonial lion rampant <unk> holding a staff , is a modification of the one introduced in the early 1950s . The club have the sixth @-@ highest average all @-@ time attendance in English football . Their average home gate for the 2015 – 16 season was 41 @,@ 500 , the seventh highest in the Premier League . Since 2003 , Chelsea have been owned by Russian billionaire Roman Abramovich . In 2016 , they were ranked by Forbes magazine as the seventh most valuable football club in the world , at £ 1 @.@ 15 billion ( $ 1 @.@ 66 billion ) . 
