The vocabulary of color grading
Color grading operates on three tonal ranges independently: shadows (the darkest tones), midtones (the middle range), and highlights (the brightest tones). Each range can be adjusted in luminance (how bright) and color (what hue cast). The four primary controls in most grading tools are lift (raises or lowers the shadow floor), gamma (adjusts midtone brightness), gain (adjusts highlight brightness), and saturation (the global intensity of color). Understanding these controls provides a precise vocabulary for communicating with photographers and retouchers — specifying 'warm lifted shadows, muted midtones, slightly cooled highlights' is a complete technical brief that a colorist can implement without interpretation.
