Like Peregrine says, the Vallejo Game Colour line is basically an exact match for the old
GW range. The
Dakka paint range conversion chart shows the matching colours from each range. ie. to match those colours you'd get:
Heavy Charcoal (155) for Charadon Granite
Hot Orange (009) for Blazing Orange.
The badab black wash however, washes are different. I'd recommend getting the new
GW Nuln Oil which is their replacement for the Badab Black wash. It has different flow characteristics and though it's expensive... it's really good. The Vallejo black wash by comparison is much mroe densely pigmented and will leave too much pigment on the surface, defeating the purpose of the wash which is to shade the recesses.