Queen Elizabeth II 's distinctive "rainbow strategy" for dressing was a deliberate choice to ensure her visibility at major public events, including the annual Trooping the Colour parade, which traditionally marks the monarch 's official birthday in June . This sartorial approach saw the late monarch favour bold, monochromatic colours, allowing her to stand out clearly within large crowds and remain easily identifiable to onlookers. The refinement of this instantly recognisable style is widely attributed to Angela Kelly , her long-time dresser and confidante, who joined the royal household in 1994. Together, they crafted a signature uniform comprising tailored coats, a Launer London handbag, sensible footwear, and a coordinating hat. “I have to be seen to be believed,” was the famous motto attributed to her, according to biographer Robert Hardman, a simple line that underpinned a lifetime of sartorial strategy.…