Labradors come in 3 colors - chocolate, black and yellow. But the science behind the colors goes much deeper. 

Info:
BB = black Labrador, no chocolate gene
Bb = black Labrador, carries chocolate gene
bb = chocolate Labrador, no black gene

EE = no yellow gene
Ee = yellow carrier but is either black or chocolate
ee = yellow Labrador

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EEBB =Basic Black (BB)
EEBb =Black that carries Chocola. (Bc)
EeBB =Black that carries Yellow(By)
EeBb =Black that carries Yellow and chocolate (Byc)
eeBB =Yellow (Yy) [does not carry chocolate]
eeBb =Yellow that carries Chocolate (Yc)
eebb =chocolate pigmented yellow / No Black Pigment (NBP) / “Dudley”
EEbb =Chocolate (CC) [does not carry yellow]
Eebb =Chocolate that carries yellow (Cy)

 

COAT Hair: Distinctive feature, short, dense, without wave or feathering, giving fairly hard feel to the touch; weather-resistant undercoat.

 

Colour: Wholly black, yellow or liver/chocolate. Yellows range from light cream to fox red, livers/chocolates range from light to dark. Small white spot on chest and the rear of pasterns permissible.

Any other coat colour or combination of colours is a DISQUALIFYING FAULT.

EeBb to EeBb