The colors are made to symbolize basically the personality and purity of the character. Saintly Diabolical  is seen as pink as it was a sweet color with a deepness as it flows into a more deep color. Angelic kiss being yellow as angels are represented in gold if not white, while as for Devil’s kiss has more of a black and red color combination for the dark and more mischievous personality of the devil.

I stuck with the traditional brown bottles as it matched well with the tone of the packaging and the brand itself.