In the story "The Tell-Tale Heart" both the narrator and the old man live together in the old man's house.
Darkness
The Tell-Tale heart characters include: the narratotr, the oldman and the three police.
Blind
Two themes conveyed in this shorty story are mental health because the narrator killed the old man for no valid reason and guilt because at the end he confesses his crime.
Brown
The darkness represents his disillusionment and loss of innocence.
The word "blind" is used throughout the story to highlight the narrator's isolation. “North Richmond Street, being blind…An uninhabited house of two storeys stood at the blind end”
The color brown is used repeatedly to symbolize the dull and lonely place where he was living.