The renders aren't matching because I used lgeo with a custom lg_color.inc, which is based on the original TLG RGB values (that is what I've been told). You can find it here (Page 5 first posting).
But I don't get what you are trying to do here. Why tweak the existing copper? It's alright as it is. It's just useless for patterns since it has a pearl finish and is too dark. A lighter color with a metallic finish is needed here.
But I don't get what you are trying to do here. Why tweak the existing copper? It's alright as it is. It's just useless for patterns since it has a pearl finish and is too dark. A lighter color with a metallic finish is needed here.