It is an adult game brand under Clearrave (株式会社クリアレーヴ, Kabushiki gaisha Kuriarēvu), a software company located in Mitaka, Tokyo.

[P 1] Palette is known for developing Mashiroiro Symphony, their ninth title released in 2009.

Their sole work Kegareta Neoro: Taorareta Shimai was released on November 12, 2004.

A Radio Which Thrives on Praise), abbreviated as HomeRadi (ほめらじ, Homeraji), began to broadcast on March 8, 2007.

This series is sponsored by Purple Software and Palette, and the show is hosted by Hideki Ogihara and Kazane.