The OVA adaptation of Sora no Iro, Mizu no Iro, is being scheduled for release across DVD on 2 episodes, each spanning about 30 minutes. Produced by Himajin, the character designer and chief animation director for the series was Kazuya Kuroda, while the first episode was supervised by Takeo Takahashi.
1 - 1Sora No Iro, Mizu No Iro Episode 1 Jul. 28, 2006
1 - 2Sora No Iro, Mizu No Iro Episode 2 Jun. 27, 2008