Cinematography
Color Grading
The process of altering and enhancing the color of a motion picture, video image, or still image electronically, photo-chemically, or digitally.
In Depth
Color grading (or Color Correction) is used to establish a visual mood. The most famous modern example is the 'Teal and Orange' look, which contrasts cool shadows with warm skin tones to make the image pop.
Example
"The greenish tint in 'The Matrix' which signals to the audience that they are inside the simulation."