What is the mood of Richard Cory by Simon and Garfunkel?

The mood of "Richard Cory" by Simon and Garfunkel is somber and reflective. The song juxtaposes the outward appearance of wealth and success with the inner turmoil and loneliness experienced by the titular character. Despite being admired by the townspeople, Cory's tragic end highlights the theme of isolation and the idea that material wealth does not guarantee happiness. This creates a poignant and melancholic atmosphere throughout the piece.