Not even close. Evolutionary selection pressures don't usually act directly on genetics. Perhaps you are incorrectly attempting to rely on intuition, and over-simplistic phrases like selection pressures. Intuition is incredibly misleading with evolution.

Your pink and blue example is actually a great model to work from. Think about the genes and the expression of those genes, and then think about what is being selected if all the blue animals are eaten.

Or think about what would happen if there was a mountain range, and pink animals were eaten on one side and blue ones were eaten on the other side.

Or think about what if one of the blue fathers has pink polka dots that gave it a 10% better chance of survival.

Always concentrate on watching that genes are passed on by reproduction - getting eaten doesn't have to be a problem if reproduction has already occurred (unless parental investment is needed or you get complicated like kin selection).

I am not a biologist. But 'The Selfish Gene' is one of my favourite books because of the concepts within. Unfortunately I think Dawkins went off the deep end later (with what I thought was religious zeal). The Extended Phenotype is even harder to read, but also worthwhile.

It is a fun topic because many phrases about evolution seem misleadingly about death rather than reproduction. And the meaning of the word evolution is absolutely twisted in everyday conversation. Ignoring the troubles with bible bashers. https://en.wikipedia.org/wiki/Survival_of_the_fittest - "fittest" has an unobvious meaning.