Colors of the Heart

"Colors of the Heart" is a song by the Japanese rock band UVERworld that appeared as the third opening theme for Blood+ (ブラッドプラス), the 2005 anime television series produced by Production I.G. It was released in 2006.

Released as UVERworld's fourth major single on May 17, 2006, the song later appeared on the band's 2006 studio album Bugright and was also included on BLOOD+ COMPLETE BEST. TAKUYA∞ wrote the lyrics and UVERworld composed the music. The single came out in two editions, including a limited version packaged with a Blood+ sticker, reached No. 3 on Oricon's weekly singles chart, and received a Gold certification from the RIAJ in the full-track digital download category. It reflects the alternative rock and rap rock elements associated with UVERworld's mid-2000s singles.