Blue is usually associated with the sky and ocean. Also it’s associated with being cold.
West Side Story is based on Shakespeare's C. Romeo and Juliet.
West Side Story is a modern version of Romeo and Juliet, as there are two gangs (families), who constantly war against each other, but two lovers of opposite sides fall in love with each other, bringing complicated events.
hope this helps
Okay so someone decided to delete my answer. My said answer was "We Are The World". I don't even know what my mistake was. The song was used to encourage others to share their goods with those who are less fortunate, and cannot afford as much.
