Then, what happens to the colors which they don't like? They are unappreciated and people will never see their true values. A human brain seem to consist of 2 boxes - like and dislike boxes. Assuming that the brain is fixed in it's thinking and mindset, the moment a color falls into the dislike box, it be there for good, more or less. No matter how it tries to change the person's opinion of it, it will always have the tag 'dislike' placed over it.

I find that humans are like this. Once we are fixed in our thinking towards something, that something either falls into the dislike or like box in our brains. If a person thinks a particular dressing is nice, then it is nice. It doesn't matter if everyone thinks it sucks or it actually sucks like hell because it's already fallen into his 'like' box. In other words, he can see no fault with it and it would be hard to change his opinion of it.