There are several artists with the name 彩:

1) 彩 (Aya) is a Japanese singer-songwriter who debuted at NHK Minna no Uta on 2013.

2) 彩 (Sai) is one of the 15 idol units appeared on the social mobile game THE iDOLM@STER SideM. The unit is a trio consisting of former Traditional Japanese performers Shoma Hanamura, Kirio Nekoyanagi, and Kuro Kiyosumi. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.