Board Thread:Character Discussion/@comment-5817180-20160516043921/@comment-25536775-20160524032337

Zelena's the only character with a fully consistent magic color, and even then, there have been some shade variations. Her Emerald Green from 3x12 to 3x17 became brighter and closer to lime green in 3x20, but then reverted back to emerald green, then in Season 5 she seems to be using the lighter shade.

Rumpel's magic tends to take a velvet red shade, and so did Hook's magic when he was the DO (The color may look different due to production issues, but I'm fairly sure the writers intended us to see as the same shade of red). But he also consistently used purple magic. Purple is the most common magic shade, so I'm assuming purple is "average" magic and red is "DO" magic. Sometimes even black and grey magic, although much less often.

I think Emma's light magic, specifically, is white. Her yellow magic when fighting Merlin was DO magic. I also think her poof color was grey because her Savior self was fighting her DO self.

Regina's poof magic is generally purple with that black smoke in the pilot. Her "blast" magic is red, even though she never poofed red.

Ingrid's and Maleficent's poof magic were consistent.