The doe is a Smoke Pearl, the buck is a Siamese Sable. These are both shaded colors. To be shaded like this, they must be carrying one shaded gene, and either one REW gene OR one Himi gene. An animal with two shaded genes is a Seal, which is very, very dark brown, so dark it almost looks black (until you set it beside a genuine Black!) If bred together, they can produce:
Siamese Sable
Seal
REW or Himi (Pointed White)
The doe is homozygous for the dilution gene. If the buck also carries it, they could produce:
Smoke Pearl
Blue Seal
Blue Himi