Lumière is a track from Clair Obscur: Expedition 33, the 2025 role-playing game developed by French studio Sandfall Interactive, with music composed by Lorien Testard. The piece is named for the game's central city, a Belle Époque inspired version of Paris threatened by the Paintress. After the game's release, its soundtrack spread widely through streaming, fan edits and social clips, with this theme in particular shared for its memorable melody. The excerpt remains popular because it identifies the game immediately while also working alone as an emotional, cinematic cue.