Note

As the chickens of the millefleur color varieties age, the amount of white in the pattern will increase. Two-year-old chickens generally have the best pattern distribution.

Color and pattern male

Head: lemon-yellow.

Neck: hackle warm lemon-yellow; each feather ends with a bright-blue spangle with a diamond-shaped pure white mottle and a lemon-yellow ornamental fringe on the sides; front of the neck similar to the breast.       

Back and shoulders: lemon-yellow, each feather with a diamond-shaped, bright-blue spangle and a tiny white mottle at the tip.

Saddle-hackle: similar to the neck-hackle, the shaft-stripe as well as the mottle are less noticeable because the feathers ends thinner than those of the neck-hackle.

Tail: steering-feathers bright-blue , each feather with a white mottle at the tip; sickles and coverts bright-blue with a tiny white almost V-shaped mottle at the tip.

Wings: bow almost bright-blue ; wing-arch lemon-yellow, sparsely with tiny white mottles; greater-coverts lemon-yellow, each feather ending in a large, almost round, bright-blue spangle with a almost V-shaped white mottle, forming a clear blue and white wing-bar when the wing is closed.

Primary-flights: inner-vane bright-blue , outer-vane bright-blue with a narrow lemon-yellow lace and a white mottle at the tip.

Secondary-flights: outer-vane lemon-yellow, inner-vane bright-blue widening at the end to the-outer vane connecting to the white mottle.

Breast: lemon-yellow, each feather ends in a large, almost round, bright-blue spangle with a V-shaped white mottle.

Belly, thighs, leg- and foot-feathering: approximately similar to the breast. 

Down: blue-grey, changing to to a grayish pale yellow at the base.

Serious faults

Pale or uneven ground-color. Ground-color too warm resembling ochre. Shaft-stripes on te neck-hackle. Too strong development of the bright blue spangles on the breast. Coarse white mottles. Completely vague blurry pattern. Too much white in wing-flights, leg- and foot-feathering. Too dark or uneven blue color. Black or white in the parts that require bright blue.

Faults

Slightly too pale or somewhat uneven ground-color. Slightly too warm and therefore not distinct from ochre.  Too much white in wing-flights, leg- and foot-feathering. Slightly too much white in over-aged chickens.

Color and pattern female

Head and neck: lemon-yellow, each feather ends with a bright-blue spangle with a diamond-shaped pure white mottle; front of the neck similar to the breast.       

Back, shoulders, breast, bow, wing-coverts and saddle-cushion: lemon yellow, each feather ends in a large, almost round, bright-blue spangle with a V-shaped white mottle.

Tail: steering- feathers bright-blue, with a diamond-shaped pure white mottle; coverts similar to the breast; the upper-covert on each side is covered by a strongly elongated covert, which is, except for the slightly longer bright-blue spangle, similar to the other coverts.

Primary-flights: inner-vane bright-blue, outer-vane slightly lemon yellow laced, lower end of the feathers white laced. 

Secondary-flights: outer-vane lemon yellow, inner-vane bright-blue widening at the end to the-outer vane connecting to the white mottle.

Belly, thighs, rear-end, leg- and foot-feathering : approximately similar to the breast. 

Down: blue-grey, to a grayish pale yellow at the base.

Serious faults

Pale or uneven ground-color. Ground-color too warm resembling ochre. Shaft-stripes on the neck-hackle. Coarse white mottles. Completely vague blurry pattern.  Too dark or uneven blue color.  Black or white in the parts that require bright-blue. Too much white in wing-flights, leg- and foot-feathering.

Faults

Slightly too pale or somewhat uneven ground color. Slightly too warm and therefore not distinct from ochre. Slightly too much white in wing-flights, leg- and foot-feathering. Slightly too much white in over-aged chickens.

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