Kate Middleton looked radiant when she joined husband Prince William and the rest of the royal family for an Easter Sunday church service.

On Sunday, Middleton appeared to be in a very good mood when she and Prince William were photographed heading to St. George's Chapel in Windsor. For the service, the Duchess of Cambridge stunned in a baby blue Alexander McQueen coat and a matching dress underneath, which she paired with a gray Jane Taylor fascinator.

Kate Middleton
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the traditional Easter Sunday church service at St George's Chapel, Windsor Castle on April 21, 2019 in Windsor, England. Getty Images/Max Mumby

This wasn't the first time Middleton had worn this outfit as she also donned it during an Easter service while she and Prince William were on a tour of Australia back in 2014, according to Hello! magazine. She even wore a similar fascinator at the time.

For this year's Easter Sunday service, however, she accessorized with statement dangling Robinson Pelham earrings, a diamond and pearl brooch, nude Emmy London heels and a gray clutch from the same brand.

The Robinson Pelham earrings first made its appearance on Middleton's lavish royal wedding with Prince William back in 2011. The oak leaf and acorn brooch is a recycled piece as well, one that she first wore during the Queen's Diamond Jubilee celebrations in May 2012, according to Daily Mail.

The mom-of-three kept her makeup minimal and chose not to wear stockings.

Kate Middleton
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend Easter Sunday service at St George's Chapel on April 21, 2019 in Windsor, England. Getty Images/Samir Hussein/WireImage

Aside from Middleton, another member of the royal family opted for a bright-colored outfit for Easter: Queen Elizabeth II. The monarch, who celebrated her 93rd birthday on Sunday, stood out in a bright blue coat and matching hat.

The Queen usually celebrates her birthday privately, but this time, royal fans were given a glimpse at the celebration when most of the royal family came to attend the church service.

Prince Andrew, Princess Beatrice and Princess Anne were among the many royals who attended the Easter Sunday service. Joining them are Princess Anne's children, who came with their respective spouses. Peter Phillips came with his wife, Autumn, while Zara brought along her husband, Mike Tindall. Queen Elizabeth II's youngest child, Prince Edward, and his family were also in attendance.

Noticeably missing from the service was the Queen's husband, Prince Philip, who has skipped the service for the second year in a row.

Prince Charles and his wife, Camilla Parker-Bowles, were not in attendance as well as the couple usually spends Easter in Scotland, Town & Country noted. Prince Harry's wife, Meghan Markle, also opted to stay at home as she nears the due date of their first child.