Colour can appeal to our impulses

Colours which are often used to 'appeal to our impulses' are:

Impulses	Colour
Food/hunger	Orange/pale yellow, pale brown, pale green;
Thirst	Yellow/brown, reddish/yellow (dry);
Health	Fresh colours - blue, green;
Sexual/Instinct (Love, eroticism)	Red
Sensuality	Lilac
Motherly love, care, attention	soft tones, pastel shades.