Colour Meaning

Good Guys:

White and off-white – The Hero, The Messiah, White Magician Girl, Deadpan Snarker
Blue – The Hero or The Lancer
Cherry Red – The Hero or The Lancer
Red and Blue Together – The Hero
Natural greens – Nature Hero, Closer to Earth, The Big Guy, Sixth Ranger
Pink – The Token Girl, The Chick, or possibly The Medic; also used for The Hero especially in Magical Girl series due to pink being seen as a Distaff Counterpart of red or blue.
Browns and other earthy tones – Nature Hero, Closer to Earth, The Obi-Wan, Retired Badass; their use by villains is not unheard of but exceedingly rare and tends to denote savagery when used.
Gold – The Ace
Yellow – Kid Appeal Character
Gray – Reasonable Authority Figure
Black – Anti-Hero, Knight in Sour Armor and generally Bad Ass heroes.

Bad Guys:

Black – Card-Carrying Villain, in recent times anyway (Western cultures associate this with death)
Crimson red – Ax Crazy, Omnicidal Maniac
Navy blue – a favorite of evil chess masters and Aristocrats.
Unnatural Greens – the villain employs toxic materials in his schemes.
Silver– Rich Bitch, indicates wealth and arrogance.
Purple – Evil bitches and villainesses. Popular in Japanese media; the official color of videogame evil; really popular for comic book villains and nefarious aliens, particularly in combination with green. It is also often associated with venom. As it is also the ancient color for royalty, tying it in with Aristocrats.
All white – A hint of madness, religious zealotry, or a church that oversteps its bounds. Also, due to Asian cultures associating white with death as mentioned above, characters who dress all or mostly in white or have white hair are often strongly associated with death, the supernatural, etc.

Neutral Guys/Transition colours:

Black and White in equal amounts (see also: referees)
Light Gray (black and white; neutrals, transitions)
Purple (blue and red; royalty, wealth and command; this now often overlaps with Purple Is Powerful, and Supernatural Is Purple. See also Purple Is The New Black.)
Orange (red and yellow)
Green (used equally for neutrals and allied but not under your control)

http://tvtropes.org/pmwiki/pmwiki.php/Main/GoodColorsEvilColors
Purple Hair and other Purple themes – http://pierrejoubert.blogspot.co.uk/2013_01_01_archive.html

PURPLE = represents the Planet Saturn; Purple = Phoenician = the Purple People

These Demon creatures worship the planet Saturn

More Purple Meaning

‘Being the Devil’s Kettle high school, it makes sense the school mascot is the Devil. He raises his arms in praise; to get the crowd cheering. His shadow as he moves across the court makes the eerie shape of the Masonic demon idol, Baphomet, who needs to introduction on this site. This is not the last you will see of him in the film. The cheerleaders and basketball players are wearing purple, one of the school spirit colors. Ben from Pseudo-Occult Media seems to think that purple has a dissociating effect on mind control victims since blue and red are polar opposites.
Purple could also be a trigger reinforcing color programming. Some mind control slaves under this specific programming may actually believe that they are an alter that is an actual color. In this case they would think they were the color purple. That doesn’t mean they think they are a lifeless crayon (unless their programmer actually programs them to just lie there), only that their alter is called “purple” or whatever color and has it’s own personality separate from their core personality.
The other school spirit colors seem to be orange and red, which are used to make flames on the flags that the cheerleaders are spinning. This is essentially Satan High. This makes you wonder just how many high school rituals are actually programming or occult activities used on students.’ http://todayon-sicksadworld.blogspot.co.uk/