Board Thread:General Discussion/@comment-27079851-20161207035158/@comment-25375217-20170409223315

Yellow would make sense. I was thinking Indigo because it would be one of the last colors of the rainbow people would guess, hence why Kat was okay with narrowing it down so far.

I've discussed on a different thread that the colors of the fairies tend to line up with the psychological attributes those colors tend to have. Yellow is enthusiastic, learned knowledge, optimistic, and confident; orange is adventurous, competitive, extroverted, and uninhibited; indigo is perceptive, intuitive, devoted, and wise. Based on that... I don't know. Indigo would have more attributes that could carry over to the Black Fairy (wise, intuitive) while Yellow or Orange would clash more with the Black Fairy (optimistic vs. dark, extroverted vs. sealed away in another realm).