They're brown.
If i remember correctly one and three Carlisle talks about them his eyes were green. Very sorry if I am wrong.
green
Robert has blue eyes but they use contacts for twilight
His eyes are red.
purple
They were brown due to his mothers and fathers eyes which were both brown
Edward had emerald-green eyes, like his mother, Elizabeth Mason.
She really has green eyes. She had to wear brown contacts for the role of Bella in The Twilight Saga.
She is warm with Edwards hair color. but has curly hair like Charlie.(Although it is redish brown like Edwards.) And Bellas human eyes.
Their green. Sometimes his eyes changes color even though he's not in twilight.
Bella's eyes are described as brown in the Twilight series by Stephenie Meyer.
depends on the mothers eye color if she has brown eyes then it is about a 25% chance that the baby will have blue eyes