Protection: brown 24%, red 18%, pink 15%, … (Heller, 1989)

Reliability: blue 27%, green 13%, brown 10%, … (Heller, 1989)

As a colour for interior, brown appears positive. It is the colour of rustic materials such as wood, leather and unbleached wool. Although spaces with brown furniture and carpets appear smaller, they also provide a sense of security. Brown rooms are experienced as cozy because brown provides the ideal climate indoors. It is the colour that belongs to the heat without being hot. (Heller, 1989)