As far as I know, in the US, black is the standard but blue and white are supposed to be around but I don't know where. Blue and white are in Australia and perhaps the UK.
YES IN SOUTH EASTERN AZ at Hubbs Australorp farm in Duncan AZ,very nice people & they breed different colored Australorps, I have this e-mail for them = [email protected] & I believe they are members of BYC we have a few Aussies from them , all very nice birds, i have one young Splash roo & one young Blue roo & 2 young hens, from them all are beautiful birds here is our splash roo named Ghost, plus right now we are raising 17 Aussie pullets, i will take more pic's of our Aussies & post them here.