Chrysophobia is the fear of gold :)
I can find where others say they are afraid of oranges as well, but not an official phobia name. The closest hits are: Chrysophobia: Fear of the color orange Esperidoeidiphobia: Fear of citrus fruits
Chromophobia is the fear of colors, and Chrysophobia is the specific fear of the color orange which affects 250000 Americans. It is defined as a fear of anything holding the color or resembling the color orange and can differ between having an extreme distaste for the color to being unable to touch something or view something orange.