It communicates powerfully in advertising and publishing and is especially popular on packages for baked foods. In interior design, it is usually used with restraint. Green is nature's color, restful and friendly. It can be cool and soothing, harsh and brassy. It is the color of apples, lines and mint - but also of mold, bile and slithery creatures.
People have strong reactions to green, both pro and con.
It is not a popular color in advertising, publication design, and packaging. Interior designers use it effectively in light values as a background.