The Queen wore another vibrant look for Easter services in 2019.
The royal was easy to spot in a robin's-egg-blue coat and wide-brimmed hat accented by fuchsia flowers.
There was actually a logical reason why the Queen often chose bright colors for her public appearances.
According to her daughter-in-law Sophie, the Countess of Wessex, who is married to her youngest son Edward, the Queen often opted for colorful looks during her reign to make her easier to see.
"She needs to stand out for people to be able to say 'I saw the Queen,'" she said in the Smithsonian Channel documentary "The Queen at 90." "Don't forget that when she turns up somewhere, the crowds are two, three, four, 10, 15 deep, and someone wants to be able to say they saw a bit of the Queen's hat as she went past."