"Purple-hued Night"; stylized in all lowercase) is a song recorded by South Korean singer Sunmi, released on June 29, 2020, by Makeus Entertainment as a single.

The song title, which is a romanization of the Korean words for purple-hued night, was chosen because "the violet-colored sky made her feel an undefinable sense of love and joy, but also because she thought that the color purple best described her.

"[7] The song, which was co-composed by Sunmi and Frants, incorporates dance-pop and city pop sounds and features rhythmic beats and guitar riffs by singer-songwriter Jukjae.

It was directed by Ziyong Kim of FantazyLab, styled by stylist Kevin Germanier, and the choreography was completed by dancer Lee Yi-jung.

[11] Yonhap describes the music video as being "saturated in a purple hue filled with imagery of young partiers having a blast around a beach bonfire with fireworks, without the usual biting commentaries associated with Sunmi."