You can call Ronan Farrow “Faux Blue Eyes.”

The son of Mia Farrow and possibly “Ol’ Blue Eyes” Frank Sinatra wears colored contact lenses to make his eyes a brighter blue, sources confirmed to Page Six.

The MSNBC host landed his show soon after Mia claimed that Sinatra, and not Woody Allen, could be Ronan’s father, sparking a debate about whether he shares the legendary singer’s piercing eyes.

But Ronan was spotted fueling the speculation by wearing contacts to make his eyes appear Sinatra blue during the Time 100 Gala Tuesday at Jazz at Lincoln Center.

“You could see the outline of his contacts,” said a spy.

A friend confirmed of Ronan’s colored contacts, “He’s blind as a bat, they are prescription contacts. They are tinted white, but they do make his eyes brighter blue.”

And even Allen has admitted that Farrow looked like Sinatra, recently writing, “Granted, he looks a lot like Frank with the blue eyes and facial features.”

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