The royal women appeared to pay a subtle tribute to Kate Middleton during an Easter Sunday service at St. George’s Chapel in Windsor.

Today, King Charles celebrates the Christian holiday with his wife, Queen Camilla, and other members of the royal family, while Kate and Prince William are currently spending time with their children at Anmer Estate in Norfolk.

Royal watchers couldn’t help but notice that the Queen, Princess Anne and Sarah Ferguson were wearing matching green outfits, sparking speculation about the meaning behind them.

Towards daily expressRoyal expert Afua Hagan agreed the trio chose to wear green to show support for Charles and Kate, as the color is synonymous with the Cancer Ribbon and Macmillan Cancer Support.

“Yeah, I think that might be the reason – so yeah, I agree with that!” Hagen affirmed.

For the uninitiated, the king and his daughter-in-law are currently undergoing treatment for their respective cancers, which were diagnosed earlier this year.

Personal stylist Francesca Cairns claims the royals’ decision to go with the colors was definitely well-thought-out, noting: “Green represents growth and the symbolism is particularly appropriate during the Easter season, when there are themes of sacrifice, resurrection and new beginnings. It abounds.”

“It evokes a feeling of hope. Green is also associated with renewal and hope.

“It must also be related to Macmillan Cancer because the color is green, or it’s a very Easter color,” the stylist added.