藍紫色, also mistakenly known as 愛紫色 (Ai Murasaki Iro), is one of Dir En Grey's earliest songs. It was never released in any form and only played live in 1997–98. Along with 刹那, 藍紫色 is one of the most famous indies songs by Dir En Grey.
The first confirmed performance of the song, then called 新曲5 (Shinkyoku 5) ("New Song 5"), was on August 7, 1997. The official website confirms that the song was played on November 2, 1998. This was also the last performance of the song, there are 10 confirmed performances in total. It is also mentioned in FOOL'S MATE #198 (April 1998), where Kyo explains that 新曲2 and 新曲5 were not finished yet and didn't receive proper names. On May 5, when the song was performed as 藍紫色 for the first time, Kyo also announced it as 藍紫色.
You can listen to the October 28, 1997, performance of the song here.
- A live report from Dir En Grey's indies days lists this song as ランシ色 (Ranshishoku).