However, Kate has not always worn blue to the Easter Sunday service.
In 2017, the Princess stepped out wearing a cream Catherine Walker bespoke coat that she had first worn the year before.
Kate also opted to wear a Whistles “Lina Dobby” pleat skirt that she first wore in Los Angeles back in 2011.
To accessorise, she carried a clutch by Etui Bags, wore her Rupert Sanderson Malory pumps in nude, her Lock & Co. Jacqueline hat, and earrings on loan from late the Queen.