One of the coolest ideas for a game by far :D The tutorial is great at explaning the game which is a blessing in a jam game :]
Like other people said sometimes you get really close to the color you need but one drop away from blue or red that is frustrating :/ Maybe check for a color range rather than exact color.
Also it would be cool to have mechanics like top shelf potions dripping their colors to bottom shelfs bottles it would create an even bigger chaos but thats just a suggestion :]
Overall pretty creative game loved it !