Not sure if this one has been posted up yet but here ya go, managed to get my chocobo to the color of Lavender Purple. I thought it was kind of odd cause I haven't seen this one on any of the guides yet, might just be some kind of in-between colors. I got it by feeding my chocobo O'Ghomoro Berry's, stopping each time in started to grow new feathers and then feeding it again after it changed. Took about 11 total I believe.