APA Blue Color Standard
Color of Male and Female
HEAD: Lustrous bluish black.
NECK: Hackle - a uniform shade of plain slaty blue clearly and sharply laced with lustrous bluish black. Front of neck - same as breast.
BACK: A uniform shade of plain slaty blue clearly and sharply laced with lustrous bluish black.
SADDLE: Same as hackle.
TAIL: Main tail - a uniform shade of plain slaty blue clearly and sharply laced with bluish black. Sickles, lesser sickles, and coverts - same as main tail.
WINGS: Shoulders, fronts, bows, and coverts - a uniform shade of plain slaty blue clearly and sharply laced with bluish black. Primaries - a uniform shade of slaty blue. Secondaries - a uniform shade of plain slaty blue, outer web clearly and sharply laced with bluish black, lustrous bluish black shafting.
BREAST, BODY, STERN, & LOWER THIGHS: A uniform shade of plain slaty blue clearly and sharply laced with bluish black.
UNDERCOLOR: Uniform slaty blue in all sections.
DISQUALIFICATIONS: Red, yellow, orange, or positive white in any section of the plumage.
DEFECTS: Surface of feathers not laced with darker shade. Black in various sections of the plumage.