From the MCCUSA~
Draft Color Standard for
Black Copper (Brown Red) Marans
Color of Male
Disqualifications:
Brown triangular wing bay. Golden or Straw colored hackles.
The cock:
The Ideal specimen will represent a color balance of Black and Copper. The cock must be Black with Copper finery, the hackles and the small of the back are Copper colored, with a Black or slightly reddish-brown marked breast.
Comb, Face, Wattles and Earlobes: Bright red.
Beak: Dark Horn.
Eyes: Reddish Bay.
Shanks and Toes: Dark Slate, bottom of feet pinkish white.
Head: Deep Strong Red Copper color.
Neck:
Hackle: Deep Copper color (mid-coppery to red-coppery, but not golden or straw colored).
Front of neck: Black with narrow lacing of Deep Copper.
Back:
Back: Lustrous Deep Copper.
Saddle: Deep Copper color matching the hackle.
Tail:
Main Tail: Black with slight luster.
Sickles and Coverts: Lustrous black with glints of beetle Green.
Wings:
Shoulders: Mahogany Red color.
Bows: Lustrous Deep Copper to match back.
Coverts: Lustrous black forming a black armband.
Primaries: Black.
Secondaries: Black (exposed portion forms a lustrous Black Triangular wing bay).
Breast: Black or with slightly Copper marks.
Body and Stern: Black.
Legs & Lower Thighs: Black.
Shank and Toe Feathering: Black.
Ear Down: Brown.
Color of Female
Disqualifications:
Brown spotting on the body.
The Hen:
The hen must be black with a copper hackle.
Comb, Face, Wattles and Earlobes: Bright red.
Beak: Dark horn.
Eyes: Reddish bay.
Shanks and Toes: Dark Slate, bottom of feet pinkish white.
Head: Copper (varying from mid-copper to red-copper).
Neck:
Hackle: Copper with a black-colored tip (spreading out almost down to the breast).
Front of neck: Copper.
Back: Black.
Tail: Black.
Wings: Black.
Breast: Black.
Body and Stern: Black.
Legs & Lower Thighs: Black.
Shank and Toe Feathering: Black.
Ear Down: Black.
Yes, the BCM and Blue Copper males can have a little copper in the breast. I do remember reading that it should not exceed 10% of overall breast color.