«E», normal extension of black, allows the A-series alleles to show through, and «e», recessive red / yellow, overrides whatever gene is present at the A locus to produce a dog which shows only phaeomelanin pigment in the coat. (tlcschnauzers.com)
a coat colour that is typically the result of phaeomelanin pigmentation, however in some breeds such as Doberman Pinschers brown is called red; reminiscent of reddish woods such as cherry or mahogany; also tawny, chestnut, orange, rusty, and red - gold (lowchensaustralia.com)
The various shades of brown, tan, red, and cream depend on the concentration of phaeomelanin in the hair shafts, the shape of the crystals, and other factors. (siriusdog.com)