Also his name is midoria which I'm pretty sure is derived from Midori or something which means green like that's one of the reasons why I had a theory until I'm proven wrong that his family took his mom's name because things are usually taken from stuff like that
Tsuyu: hair green Denki: hair Yellow Mina:hair Pink All :green Is not deku Natural color Todoroki:hair White and red Todoroki:Secret iida and (i dont Remember) child?
They really questioning Deku's hair colour when iida has bright blue hair, kaminari has bright yellow hair, jirou bright purple, tsu with green as well and todoroki with red AND white hair....