Normally in fiction they give red haired characters green eyes... which is interesting since green eyes are more rare.
Then again Peter's eyes have been all over the place as well. I've seen them as brown most of the time (which while the most common, is the most rare in comic books), I've seen them as blue and hazel too...Heck Hobie Brown has even had blue eyes (which while technically possible, is EXTREMELY rare).
Most the MCU kids are "in name only", so the race changes are the least of their problems as even if they looked like their comic counterparts they still would be nothing like them. As a comparison between another Spider-Man related adaptation that changed the races of more minor characters we have Ned from the MCU and Ned Lee from the Spectacular Spider-Man. They are both an Asian version of Peter's former coworker Ned Leeds. One of them is just Ned Leeds with a different coat of paint, while one is a completely different character.