Yellow is, as any Inside Out viewer knows, associated with joy, as well as energy and vibrancy. As the video points out, these are all excellent traits for cartoon characters.

The Actual Reason So Many Popular Cartoon Characters Are Yellow. It's science! By Matt Miller Published: Apr 24, 2017 10:32 AM EDT.

Why are so many iconic animated characters yellow? The answer lies in random personal choices, scientific and marketing theory, as well as the colour of the sky. Minions are yellow because the ...