Color and pattern male

Head: silvery white.

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

Back, shoulders and wing-bow: silvery white.

Saddle-hackle: similar to the neck-hackle.

Tail, wing-bar, wing-flights and breast: green-glossy black.

Thighs, belly and rear-end: black.

Down: greyish black.

Serious faults 

Yellow tinge and insufficient shaft-stripe pattern in the hackles.

Faults 

Serious faults to a lesser degree. Insufficient sheen in the black.

Color and pattern female

Head: silvery white

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

Back, tail, wings and breast: green-glossy black.

Thighs, belly and rear-end: black.

Down: greyish-black.

Serious faults male and female

Yellow tinge and insufficient shaft-stripe pattern in neck-hackle.

Faults male and female

Serious faults to a lesser degree. Insufficient sheen in the black.

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