Orange, a close relative of red, sparks more controversy than any other hue.
There is usually strong positive or negative association to orange and true orange generally elicits a stronger "love it" or "hate it" response than other colors.
I don't know about you, but lately I'm loving it.
Fun and flamboyant orange radiates warmth and energy. Interestingly, some of the tones of orange such as terra cotta, peach or rust have very broad appeal.
How the color orange effects us mentally and physically
I'd say that's pretty accurate- especially the part about stimulating appetite...
"Orange is red brought nearer to humanity by yellow." --Kandinsky