@Zing, is the colour natural or have you added colour to get that yellow ? Do you know if the wax colour has anything to do with the surrounding vegetation near the hive ?I have beeswax direct from the hive and it's an off white colour with a blue-ish tinge, I asked Dh to ask his friend is this the normal colour, still waiting on an answer from him.
Edited - answered my own question with Google.
It said it can be white to brownish in colour depending on the flowers they have been feeding on. That might explain the blue-is tinge, if his hives are around gum trees. It also said it depends on how filtered it is.