"Så mörk är natten i midvintertid" is a Saint Lucy song, originally entitled Lucia, with lyrics by Johny Johansson and music by Carl Bertil Agnestig. The song was originally published in 1969, and has become a popular Saint Lucy song throughout Sweden.
An early recording was done by Söderbärke ungdomskör on the 1976 album Luciamorgon på Carl Larsson-gården.[1]