Color and pattern male

Head: white.

Neck: hackle white, each-feather with a medium-wide bright-blue shaft-stripe, surrounded by a narrow silver-white lace running around the tip; front of the neck white.

Back, shoulders and saddle-hackle: white, below the neck-hackle blue and white.

Tail: main-feathers bright-blue; support-feathers bright-blue with white lacing; sickles and coverts bright-blue; smaller-coverts with narrow silver-white lacing.

Wings: front white, may be partly bright-blue; coverts white.

Primary-flights: bright-blue with white lace on the outside of the outer-web.

Secondary-flights: inner-web bright-blue with white lace running around the tip; outer-web white, forming a complete white wing when it is closed.

Breast, flanks, thighs, belly and fluff: white.

Down: white, light grey permitted.

Serious Faults

Insufficient or broken shaft-stripes in the neck-hackle. White in the sickles. Presence of bright-blue in areas that should be white. Shaft-stripes in the saddle-hackle. Strong yellow tint in the ornamental feathers.

Faults

Serious faults to a lesser degree. Insufficient pattern in tail support-feathers and wing-flights. Presence of entire black or partial black feather patches in blue. A much too dark or much too light blue color.

Color and pattern female

Head: white.

Neck: white, each feather with a medium-wide bright-blue shaft-stripe, surrounded by a narrow silver-white lace running around the tip; front of the neck white.

Back, shoulders and saddle: white, below the neck-hackle black and white.

Tail: main-feathers bright-blue, except for the top two feathers, which are vague white laced; coverts black with a narrow white lace.

Wings: front and coverts white.

Primary-flights: bright-blue with white lace on the outside of the outer-web.

Secondary-flights: inner-web bright-blue with white lace running around the tip; outer-web white, forming a complete white wing when it is closed.

Breast, flanks, thighs, belly and fluff: white.

Down: white, light grey permitted.

Serious Faults

Insufficient or broken shaft-stripes in the neck-hackle. Broad and vague white lacing on the tail-coverts. Presence of bright-blue in areas that should be white

Faults

Serious faults to a lesser degree. Insufficient pattern in tail-coverts and wing-flights. Presence of black or partly black in areas which should be blue. Too dark or too light blue color. 

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

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

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