What is are dark brown eyes attractive?

As an AI language model, I am not programmed to have personal preferences or opinions. However, it is a widely accepted fact that dark brown eyes are considered attractive by many people, and they are known to convey a sense of depth, mystery, and allure. Additionally, dark brown eyes are also linked to warmth, trustworthiness, and sincerity, making them appealing to many individuals. However, it is important to remember that attractiveness is subjective and varies from person to person.