Is Kimi no Iro hentai?
English title: The Colors Within
No
Rated PG-13 (Teens 13 or older) on MyAnimeList and not tagged as Hentai.

Movie · 2024 · 1 episodes · PG-13 - Teens 13 or older
Drama, Music
Totsuko is a high school student with the ability to see the "colors" of others. Colors of bliss, excitement, and serenity, plus a color she treasures as her favorite. Kimi, a classmate at her school, gives off the most beautiful color of all. Although she does not play an instrument, Totsuko forms a band with Kimi and Rui, a quiet music enthusiast they meet at a used bookstore in a far corner of town. As they practice at an old church on a remote island, music brings them together, forming friendships and stirring affections. Will they discover their true "colors"? (Source: GKIDS, edited)
View on MyAnimeList