What color does Leo think Stargirl's eyes are?

In Jerry Spinelli's novel "Stargirl," Leo Borlock perceives Stargirl's eyes as a vibrant, striking shade, often described as having a unique and captivating quality. He is particularly enchanted by their color, which reflects her individuality and the way she stands out from her peers. Leo's admiration for Stargirl's eyes symbolizes his deeper feelings for her and the way she sees the world differently.