I notice that is a brassy color compared to the more bronze color of the shoulders. I haven't done my badge yet (will have to make one of foam or buy one soon) but I have been doing some color testing for the shoulders and you can see 4 colors of gold I tested here in my thread on page two if you want to check out the color options I currently am using, I mention the color I am going to use for the badge as well in the post:
http://www.therpf.com/f71/female-street-judge-build-wip-194875/index2.html
These colors are under $2 each at wal-mart (
and I'm just realizing you probably aren't in the US by the spelling of colour, so not sure who would carry the brand there, but it's just cheap acrylic paint), so really you could buy them all and try them out on something white before to test them out for best results. If you unscrew the cap without taking the plastic off just to test, you could even return them. :devil
You will definitely need a brassy color and then a black for weathering (and you can mix black in the brassy color if need be for other shades of that color too). Hoping someone answers this with the perfect color suggestions too!