Color male and female

Upper plumage overall of an even and glossy dark brown color.

The male's ornamental feathers as well as back- shoulder- and wing-arch feathers are darker in color.

Down: brown

Serious faults

Uneven color. Too dark or too light overall. Differently colored feather-parts. 

Faults

Serious faults occur to a lesser degree. Insufficient sheen on the male. 

Feather details from:  http://www.kippenencyclopedie.nl

Website from Johan Albada with more than

         5000 photos of chicken-breeds, chicken color varieties and feathers.     

Genetic code: https://kippenjungle.nl/Overzicht.htm

Website from Henk Meijers with all available information regarding chicken genetics including the world famous 

Chicken Color Calculator