Skin-tone line
The skin-tone line is a diagonal reference line on the vectorscope, pointing toward orange, that naturally-lit skin falls along — for any person, because healthy skin is the same hue and varies only in brightness and saturation. Aim to land skin on the line or just clockwise of it; drift the other way and faces go green and sickly.
First used in: 1.2 · Scopes
Used in: Skin tone gets a whole module at intermediate level: 2.6 · Skin tone.