Color and pattern male

Head: lemon-yellow.

Neck- and saddle-hackle: vibrant yellow-lemon, each feather with a broad bright-blue shaft-stripe, running parallel to the edge, ends in a point near the tip.

Front of the neck: bright-blue, each feather with a narrow lemon-yellow lacing.

Back, shoulders and wing-bows: vibrant lemon-yellow.

Tail, wing-bar and flights: bright-blue.

Breast: bright-blue, each feather with a narrow orange-gold lacing which may not extend further down than to the upper part of the thighs.

Thighs, belly and fluff: bright-blue.

Color and pattern female

Head: lemon-yellow.

Neck: hackle vibrant yellow-lemon, each feather with a broad bright-blue shaft-stripe, running parallel to the edge, ends in a point near the tip.

Front of neck: bright-blue, each feather with a narrow lemon-yellow lacing.

Back, saddle, tail and wings: bright-blue.

Breast: bright-blue, each feather with a narrow lemon-yellow lacing which should not extend below the start of the breastbone.

Thighs, belly and fluff :bright-blue.

Down: grey-black.

Serious faults male and female

Coloration that is much too light, much too dark, or complete uneven. Insufficient shaft-stripes in the hackles. Complete insufficient or too far downward lacing of the breast feathers.

Faults male and female

Minor deviations in color and pattern. 

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