I need help chosing the right colour of face powder ?

I am wanting to perches a mac face powder, i am ordering from as my nearest mac is 2 hours away so i cant try on the colour and get matched up, so i need help from someone who maybe has this particular powder and is the same colour or is a make up artist.





The powder i am wanting to buy is mac's mineralize skin finish natural


I was matched up as a nc15


So should i get light or light / medium ???


Thanks for any answers %26amp; help :)I need help chosing the right colour of face powder ?
you should get light its better and you can work with it