[asimpleusecase]

Many years ago I heard of someone who found they always had arguments in their kitchen. It was during a generation in the US where it was as very common for kitchens to be bright yellow. This person was told about the correlation between anger and the color yellow. They changed the color scheme and n their kitchen and the arguments stopped.

[helpfulContrib]

I call it "Soviet Yellow" whenever I see it, its a very common colour for buildings in Europe, and it is indeed rage-inducing. I feel that its a frequency of colour which produces a dissonance with ones own internal colour, which is more blue/white or blue/orange. This yellow feels very sickening whenever I encounter it.

[amelius]

Why are smileys and related emoji always bright yellow?

[pixl97]

Because they get your attention, much like in nature bright yellow and bright red things serve to get your attention or serve at a warning.

An entire area painted yellow, well that's screaming a warning.