Color and pattern of the male

Head: creamy-white

Neck- and saddle-hackle: creamy-white to straw-yellow with some black shaft-stripes in the lower half; front of the neck (and beard) deep-black.

Back, shoulder and wing-arch: almost silvery-white with some light red tinge.

Tail and sickles: black, upper steering-feathers black partially laced with white.

Wing-bar: black, moderate glossy greenish or bluish.

Primary-flights: black with a narrow white lace on the outer vane.

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

Breast and thighs: deep black.

Belly, flanks, rear-part (legs- and outer-toes): black to grayish-black.

Down: white to light blue-grey.

Serious faults

Extensive white on the breast, belly and thighs. Little pattern on the wing-flights.

Faults

Small white feather-tips on the breast, belly, thighs (legs- and outer-toes).

Color and pattern of the female

Head and neck-hackle: soft salmon-pink, each feather of the hackle with a creamy-white lacing and vein; some greyish-black feather-tips are present at the bottom of the hackle; front of the neck and beard creamy-white.

Back and saddle: salmon-colored, each feather with a creamy-white lacing and vein. 

Tail: upper steering-feathers salmon-colored on both sides faintly greyish-black peppering; other feathers dull grey-black with a salmon lace; coverts similar to the back.     

Wings: coverts similar to the back.

Primary-flights: outer-vane soft salmon, inner-vane mixing grey-black.

Secondary-flights: outer-vane soft salmon, inner-vane grey-black.

Breast, thighs, belly, flanks, rear-part, leg- and outer- toe feathers: creamy-white.

Down: white to light blue-grey.

Serious faults

Uneven salmon color. Rust. Complete absence of pattern on the shoulders.

Faults

Slightly uneven salmon-color. Little pattern on the shoulders.

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