Color and pattern male

Head:

Head: warm-orange.

Neck: hackle light-orange to gold-yellow, each feather with a glossy green-black middle-stripe, running almost parallel to the edge, ends in a point near the tip; shaft black; front of the neck similar to the breast.

Back, shoulders and wing-bows: warm-orange.

Wings: front black; greater-coverts glossy green-black forming a wing-bar when the wing is closed. 

Primary-flights: black with a light-brown narrow lace along the outer-web.

Secondary-flights: black with a cream to light-brown lace along the outer-web, forming a cream to light-brown wing-bay when the wing is closed, feather-end black.

Saddle-hackle: similar to the neck-hackle, a slightly deeper shade is allowed, equality is desired.

Tail: main-feathers, sickles, and coverts glossy green-black, smaller-coverts gold-yellow laced.

Breast: glossy green-black, some yellow-brown allowed.

Flanks and thighs: black, some yellow-brown allowed.

Belly and fluff: black.

Down: greyish.

Serious faults

White in tail and wing-flights. Too dark in hackles. Entire black breast.

Faults

Serious faults to a lesser degree. middle-stripes too vague. Too light and incomplete colored wing-bay. 

Color and pattern female

Head: yellow.

Neck: hackle yellow, each feather with a broad glossy green-black middle-stripe, running parallel to the edge, ends in a point near the tip; shaft black; front of the neck similar to the breast.

Back, shoulders, saddle and wing-coverts: each feather greyish-yellow sharpley black multiple laced, parallel to each other and to the outline.

Tail: main-feathers black, both upper feathers black with greyish-yellow; coverts similar to the back.

Primary-flights: black with a greyish-yellow narrow lace on the outer-web.

Secondary-flights: inner-web black, outer-web brown with black multiple lacing running approximately parallel to the feather-outline.

Breast: similar to the back, lacing extend to the throat.

Flanks, thighs and belly: soft greyish-yellow with black multiple lacing.

Fluff: soft greyish-yellow.

Down: greyish.

Serious faults

Too weak or incorrect pattern on the back, shoulders, saddle and wing-coverts. Rust color on wings. Peppered instead of clear pattern.

Faults

Serious faults to a lesser degree. 

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