i always find that no matter what colour the horse. you cant go wrong with burgundy and gold, it seems to look smart on anything , nice horse you have their
keep it simple!, i have a coloured and find if you over do the colours it just looks stupid! navy and white, or any plain colour and white...no red though!
and I use Navy with gold binding around the edge. It looks really nice. Or black and silver. But normal rides hacks etc I tend to use white :S shes a bit of everything but I havnt tried green or burgondy. xx