But then things get weird.
More photos from the same occasion show her Majesty rocking mauve not blue.
Yep that’s definitely purple…
Or is it?
Looks blue again here…
No hang on...
Whilst the seemingly lightning-fast costume change was no doubt simply a trick of the light, it does raise the question – what colour was the Queen actually wearing?
She has been spotted in both purple AND blue previously.
Take this rather jaunty purple outfit Queen Elizabeth wore to this year’s Epsom Derby at Epsom Racecourse in the UK in June.
A month later, she was spotted in blue as she stood alongside Meghan Markle on the balcony of Buckingham Palace to view a flypast to mark the centenary of the Royal Air Force.
Which makes us think that maybe it was time for her Majesty to whip out the mauve again….
Or maybe not…
Oh noooo. It's giving us flashbacks to THAT dress!
Perhaps it's time for a lie down.