I was actually thinking of something related to this topic recently, so I'm glad to have re-discovered this thread. The particular thing that I was thinking about was the fact that each Grand Duchess had a color reserved for her exclusive use. Now, I assume
this was mostly for state occasions, as I can't imagine one person (except, perhaps, the Empress) having a monopoly on a particular colour that everyone else is prohibited to wear. I also believe there were many different shades within a particular colour to choose from, otherwise of course the choices would quickly run out, especially if this was a colour assigned for life.
So I would like to know more about this tradition, for instance: At what age did the lady choose her colour? Did she choose it herself or was it chosen for her? Did she always have to dress in that colour for state occasions? Could she ever change her colour, or were colours "retired" after the death of its user? And finally, who "owned" what colour? We know that Olga wore a pink gown for her first official "coming out" ball and then again is pictured in a pink gown in the painting by Dmitri Kardovsky of the Ball at the Assembly Hall of the Nobility, which took place in 1913. I wonder whether she was assigned to that particular pink colour? Her sister Maria attended her coming out ball in a powder blue dress.
I saw on the thread entitled "Romanovs' costume" a post by Nick Nicholson explaining the following with regards to this:
"The Empresses wore cloth of silver or cloth of gold (according to her preference) for high state occasions, or colored silk embridered with gold or silver for lesser state occasions. The Empress' favorite color was
reserved for her personal use; Alexandra's was an intense rose pink, Marie's a deep cerise.
Each Grand-Duchess also had a color reserved for her exclusive use; Xenia's was peacock blue, Maria Pavlovna the elder's was a siennese orange, etc."
So do we know who else wore what colours? Incidentally, Maria Pavlovna's "siennese orange" reminds me of a letter that Lord Carrington wrote to Queen Victoria during the coronation, where he wrote "[...] the other Grand Duchesses have other colours - one is reported to be a particularly hideous shade of orange." I wonder who he was talking about - perhaps it was MP's orange (even though I have never seen this particular shade)?