Answer:
Blue eyes
Step-by-step explanation:
The punnet square would depict two heterozygous parents for brown eyes (Bb)
![\left[\begin{array}{ccc}BB&Bb&\\Bb&bb\\\end{array}\right]](https://img.qammunity.org/2021/formulas/biology/college/hcely8zrbvscvfqzqwx5vqhjwzl1t9ilol.png)
The punnet square would look like that, which shows the genotype for each offspring.
The genotype bb is responsible for the phenotype blue eyes