Orange ? Do you mean amber ?
Never tryed any other color other than red for pred. hunting .
I just try and light up the yotes eyes and I am just able to make out it's outline .Not see it plainly .
What light are you using?
How far away is the yote ?
Scope or open sights ? I use a 3X9 X50mm scope with the light atached to the scope
All I can say is try it and report back but IMO if it works or not