Definitions for "Low key"
Keywords:  shadow, highlight, tonal, dark, tone
slang adj. quiet, calm, not busy, with not too many people.
adj. Describes an image that contains mostly darker tones. Some shadow detail should be retained in the subject: low key relates to the tones in the subject and the lighting, not the exposure used. See also: high key _______________________________________________________
a method of lighting often found in mysteries and thrillers which emphasizes shadows and pools of light.