Olympique Lyonnais, commonly referred to as simply Lyon or OL, has participated in the UEFA Champions League seventeen times, and during the 2009–10 season, reached the semi-finals of the competition for the first time after three previous quarter-final appearances. They once again reached this stage in the 2019–20 season. Olympique Lyonnais plays its home matches at the 59,186-seat Parc Olympique Lyonnais, commercially known as the Groupama Stadium, in Décines-Charpieu, a suburb of Lyon. The club's home colours are white, red and blue. Lyon was a member of the G14 group of leading European football clubs and are founder members of its successor, the European Club Association.