Hello fellow Potterheads☇
In the novels and films, it is always mentioned that Harry has his mother's eyes. First of all, Lily Potter, her mother, has green eyes, Daniel Radcliffe, the actor who portrayed Harry Potter, has blue eyes. They don't have the same eye color but filmmakers planned to have Daniel Radcliffe wear contact lenses so his eyes would be green like Harry's eyes in the novels.
During the filming for "Harry Potter and the Philosopher's Srone" Daniel was given contact lenses to wear. But the problem is he was allergic to them. The filmmakers decided to remove them but tried to work through it on the first day. *Notice in the part where Harry is saying goodbye to Hagrid on the train platform, you can see almost his eyes tearing and a little bit swollen, and it feels like he's gonna cry. "
Just a newbie here, hope you'll like it. Just read it from an article long ago *full credits to the article writer*.