Princess Charlotte flew under the radar in her mother the Princess of Wales' best accessory in her Father's Day photo with Prince William, Prince George, and Prince Louis – and no one noticed.

Princess Charlotte was every bit Kate Middleton ’s mini-me at this year’s Trooping the Colour celebration. The mother-daughter duo matched in bright aquamarine hues for the annual event, which honors the reigning monarch’s birthday with a grand display of military pageantry.

Kate Middleton and her daughter, Princess Charlotte, wore matching blue ensembles to the annual Trooping the Colour event, which serves as the public celebration of King Charles’s birthday—though his actual birthday is in November.