I have to agree with Kylie on this , why ?. You are a specific colour for a reason, Northern Europeans are white, and that includes most australians, and the further south you go where it gets hotter the darker people get. Its something to do with heat reflection and absorbsion.<img src="">
edited to add;
Being Scottish my natural colour is blue, if i go on holiday to sunnier climates ,then it takes me 2 weeks just to get white