Color and pattern male

Head: light silvery-grey

Neck: hackle silvery-white or light straw-yellow, each feather with a green-glossy black shaft-stripe, running parallel to the feather-edge, ends in a point near the tip; front of the neck black.

Back, shoulders and wing-arch: light straw-yellow or silvery-white interspersed with black or grey.

Saddle-hackle: silvery-white or light straw-yellow, each feather with a black shaft-stripe.

Tail: steering-feathers black; sickles and coverts green-glossy black, some white in the main-sickles is permitted.

Wings: bow black; wing-bar green-glossy black.

Primary-flights: black with a narrow white edge along the outer-vane.

Secondary-flights: inner-vane black, outer-vane white, forming a white wing-triangle when the wing is closed.

Breast: green-glossy black.

Belly, thighs and rear-part: black.

Down: greyish.

Serious faults

Rusty brown or red on the shoulders. Extensive white on the breast, belly and thighs. White in the tail steering-feathers.

Faults

Serious faults occur to a lesser extent. Insufficient sharply defined hackles. Incomplete white wing-triangle.

Color and pattern female

Head: black.

Neck: hackle silvery-white or light straw-yellow, strongly striped with black or grey; front of the neck similar to the breast.

Back: slightly darker than the wing-coverts, almost black.

Wing: bow, shoulders and coverts black, mixed with dark brownish-grey in the center; shafts dull-white or straw-yellow.

Primary-flights: grey-brown.

Secondary- flights: outer-vane black, inner-vane black mixed with dark-grey.

Tail: steering-flights dark-brown with grey peppering; coverts similar to the back.

Breast: dark salmon, each feather edged with black at the base, edging increases slightly towards the thighs; veins light-brown.

Breast: salmon transitioning to light-grey at the thighs, veins salmon.

Body: black interspersed with grey; down dull-black with grey.

Lower thighs: dark-grey with brown.

Down: dark-grey.

Serious faults

Too weak striped neck-hackle. Too light breast-color and/or absence of pattern on the breast. Different color of the feather-shafts.

Faults

Serious faults occur to a lesser extent.

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