“Which colour goes with an orange shirt?”

Orange is actually a lovely color and can pair great with anything!
Try a pair of simple blue jeans, pair with boots in beige or black or dark brown suede for fall. Another option would be to pair
with black, off white, beige, or brown pants.
Ladies, you can pair an orange top with leopard print and look fierce!
For a woman, I would suggest adding gold accessories to bring out the warmth of the orange.

For men, I recommend adding hints of warm brown or gold, play up the shade, and also add warmth. Try adding a tie or pocket square that picks up the color, or a scarf.