COLOR SYMBOLISM:  RED, GREEN & BLUE:
WE KNOW JANE is BLUE:  blue car, blue teacup and often blue suits.  BLUE=is the color of mental clarity and wisdom, as well as communication.  But Blue gone wrong has the double meaning of deep sadness, of "being blue," which also perfectly describes Jane.    

IN SEASON ONE:  when Jane wins poker spoils, he buys Lisbon a GREEN EMERALD necklace and a RED RUBY necklace for GRACE because... 

LISBON is GREEN:  solid, down to earth and genuine -- GREEN is used to heal heart energy.  But Green gone wrong is envy and jealously [we saw a little of that from Lisbon when Lorelei was around or when Jane knows something and doesn't tell her, even if it's for her own good].]  

GRACE is RED: there's her hair but also because she is a positive expression of the color red [so far!].  She's warm, bright, strong, passionate, having love affair with Rigsby and one of the sexier characters [though they all rate pretty high! LOL] 


I have no idea though what colors Rigsby and Cho are meant to be, if any, but if I had to guess I'd think Rigsby is RED and Cho is GREEN

RED JOHN is RED gone wrong:  which includes anger, and darker themes of sex, violence and death.  


SEASON ONE PILOT:  husband/wife Morgan [means RED] Tolliver kills daughter Mercy after raping her  -- and so his wife Juniper [GREEN] kills him -- So, GREEN kills RED.  Interestingly, it is said that GREEN calms RED down/or balances -- or in this case STOPS it. 


SO, first five years focused on the pursuit of RED:  RED JOHN and the personal relationship of GRACE & RIGSBY were the two biggest storylines -- And NOW, RJ will be revealed and "Grisgsby" are married.

We know new episodes are called "My BLUE Heaven" and "My GREEN Thumb" are next, likely focusing more on JANE & LISBON's relationship.