Co-Dominant + Recessive

[aalomon]

Crossing albino x pastel you would get 50% normal het albino and 50% pastel het albino.

To get an pastel albino, both parents would need to carry the albino gene (either het or visual), but only one of the parents needs to have the pastel gene.

So going back to my first example you could breed the babies together to get your pastel albino. By crossing a pastel het albino x normal het albino you would get:

12.5% Normal
25% Normal het albino
12.5% Pastel
25% Pastel het albino
12.5% Albino
12.5% Pastel Albino