Hi @hotlipshens ,
If your baby is a genuine pure Australorp she will be a light blue or a splash and her legs will darken to a slate blue colour and her beak will go partly/mostly black depending on the genetics of her parents obviously. I find that light blue or splashes are sometimes born with lighter coloured features. Like I said before, this info will be true if she is a genuine pure Australorp. If not then her legs and beak could be any colour. If you tell me the colour of both of her parents I will be able to give you a better idea. Hope this has somewhat helped.