Sono Ao wo, Ao to Yobanai

Souta Mizuse is a colorblind college freshman. He had a feeling of being different from "normal" people because he sees the world in different colors than others. However, when he encounters a photograph exhibited by a certain photography club, he takes a step into the world of photography, which he thought was impossible. As Souta comes into contact with various ideas and thoughts through photography, he realizes the colorfulness of the world!

(Source: Hero's, translated)