The colour "Purple"

[wmkgourlay]

No: HPFGUIDX 91014

Has anyone noticed how much PURPLE, or different shades of it, ex: 
lilac, mauve, are used in the books?  Dumbledore is especially 
surrounded by purple, purple sleeping bags, purple robes, purple 
chairs, etc.  Lockhart's favourite colour is lilac.  The nightbus is 
purple and so are their uniforms on the bus.  There are also some 
letters that were wrote on purple parchment.  Seems to me in Goblet 
of Fire, but I would need to check, Ron's dress robes are mauve.

I am curious as to why this colour continues to turn-up on a regular 
basis in all the books.  I have associated it with "good" people, but 
I have not really figured out more than that.  Maybe it is just 
J.K.'s favourite colour.

Tell me what you think,

Beth