Sono Ao wo, Ao to Yobanai

Souta Mizuse, a first-year college student, was unable to tell people that he was colorblind, He couldn't but help feeling that he was different from ordinary people. One day, he found himself attracted to a photograph displayed in an exhibition. Even though he did not know what colors were "normal," Souta found the picture beautiful anyway. At the same time, he felt a sense of alienation, not being able to see it in the same way as others. With mixed feelings, he decides that photography is impossible for him. However, after meeting the photographer, Hinata Ayatsuki, Souta's view of the world slowly begins to change.

(Source: Hero's, translated)