In my world, there are magical humans often named wizards. Their scientific name is Homo magicus. However, there are standard humans (Homo sapiens as you shall know).
Traditionally, wizards live in a polytheistic theocracy divided in five castes (their main country is an India pastiche) (before India was colonised by Europeans such as British people, French people, and Portuguese people). The five castes rated to the most privileged to the most discriminated are:
- Clergy (that includes monks and nuns, shamans, and priests and priestesses);
- Rulers, and warriors (that includes nobles, lawyers, judges, police officers, security guards, soldiers, and counter-terrorists);
- Businesspeople, and scientists (that includes entrepreneurs, merchants, traders, nurses, pharmacists, and medical doctors);
- Artists, sportspeople, and workers (that includes actors and actresses, filmmakers, professional singers, professional martial artists, electricians, plumbers, miners, farmers, and sex workers);
- Untouchables/outcastes/outlaws (the homologues to Indian Dalits) (that includes street sweepers, latrine cleaners, pirates, criminal bikers, gangsters, mobsters, hitpeople, and spies).
Wizards and witches who are authority figures tend to wear more colourful uniforms than average magical humans:
- Police officers tend to wear purple (purple policepeople).
- Aristocrats tend to wear blue.
- Soldiers tend to wear green.
- Judges tend to wear yellow (as they say in French: Les Juges Jaunes).
- Attorneys tend to wear orange.
- Priests and priestesses tend to wear red.
Wizards and witches who are not from any of those occupations tend to wear black, or white, or grey. However, in the context of a wedding, both the bride and the groom traditionally wear red (in the main Wizarding religion, priests and priestesses can marry and have biological children) (clerical celibacy is something specific to Roman Catholic Christianity) (also, having both male priests and priestesses is commonplace in many non-Abrahamic religions) (red is the colour of love in many cultures from around the world).
So, I wonder what would be both the usefulness and the symbolism for authority figures to wear colourful uniforms in comparison to normal people.