Color male and female

Even, vivid, glossy, warm, deep red with minimal black on the wings and tail.

Down-color red.

Serious faults

Uneven, too light or dull color. Significant differences in color-depth between different feather-groups. White in any part of the plumage. Coppery sheen.

Faults

Slightly too light down-color. Slight deviation from the standard color. Excessive black on wings and tail. Minor color deviations. Black in the upper-color and down-color other than red.

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