Haha, indeed! I remember the Australian olive industry kicking up a fuss when the plain packaging laws for cigarettes came in, requiring this colour (named "olive green"). I quite like olives!
We use colour in filmmaking all the time as symbolism in wardrobe and mise-en-scène. It might play on the usual colour theory (white as purity, green as envy, blue as security, etc) but it can also be manipulated to prime the audience after multiple exposures and subliminally build tension. For example, I think it was Breaking Bad that used yellow in a lot of Walt's scenes associated with his drug operations, priming an emotional response in the audience and foreshadowing subsequent events. Not an ugly colour, but certainly filmmaking and visual storytelling can deliberately evoke negative emotions using colour.