Behavior, speech, etc. characteristic of a certain region or time, depicted in a novel, play, etc. to add a feeling of authenticity.
Local color is defined as the characteristics and traits that make a location unique.
The foods, shops and attitudes of the people in a town are an example of the local color.
The interest or flavor of a locality imparted by the customs and sights peculiar to it.
The use of regional detail in a literary or an artistic work.