What are the odds of being an albino human and have Down syndrome?
It is correct if (and only if) albinism and Down syndrome are independent events, that is, if albino people is not more nor less likely to have Down syndrome than non albino people (and vice-versa).

However, doing a quick Google search I can't find any source relating albinism and Down syndrome, and therefore independence seems a reasonable assumption unless more information arises and your numbers are right - at least, as right as the sources you are based in.

But beware that your sources are not very representative of what you want to get, or at least not very consistent:


Your source for albinism (and its reference) gives prevalence, that is, number of albino people in the whole population of living people in Europe and USA. Please notice that proportion in living population may differ from proportion of births since albino people may have a different life expectancy.
Your source for Down syndrome gives a "baseline probability" for a given mother age (young) in some unspecified country. For older ages, probability becames larger.


Then, "the chance of giving birth to a child that has both albino and down syndrome" may differ from that you calculated, specially if you want to use it in circumstances that differ from those your data came from.

Anyway, if you just want a rough estimate, you can use your numbers.