Eye-color: multigenic inheritance? incomplete dominance? multiple allelles?

[Steve]

If this is off-topic, I sincerely apologize.

How is eye-color inherited?
How many genes are implicated in 'producing' the phenotype trait 'eye
color'?
Two or more allelles in each gene?

In short, can e.g. two PHENOTYPICALLY blue-eyed humans have a
phenotypically brown-eyed child?

Is blue eye-color in any sense recessive? And so on.

Thank you in advance. Please respond via e-mail.

Best,
Steve