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Genetics: Colours

Try the Genetic Calculators for quick ideas of what you can breed.

Body Colours

The colours of most feathers, scales and hair are determined by the strengths of 3 pigments: Gold, Red and Blue.

Gold is the most abundant and natural colour, and a loss of Gold will cause the feather's whole colour to weaken, no matter how strong the other pigments are. GG therefore produces rich vibrant colour, while Gg or gg produce a duller or altered colour. See the two tables below.

Activating Red and/or Blue will shift the overall hue, away from the natural yellowish colour. The only unusual case is when Red and Blue are both at half strength (Rr and Bb) - they create a rainbow sheen on the feather surface, or if lacking enough Gold, plain grey colour.

The relative lightness or darkness of all pigmentation is determined by a pair of P (pale), D (dark) or N (neutral) alleles. PD cancel each other out, and NN also means no change at all; the colour will be of average shade.
The P or D effect is then modified further by S (strength) or n (no change) alleles. SS means the change is greatly enhanced, Sn only a slight boost, and nn means any Ps or Ds have no boost - just the minimum effect they usually do.

There are 234 colours available. Hover over a colour to see its name and exact genetic combo.

RR BbRR bbRr bbrr bbrr Bbrr BBRr BBRR BBRr Bb
DD SS  
Cranberry
GG RRBb DDSS
Ruby
GG RRbb DDSS
Sienna
GG Rrbb DDSS
Mustard
GG rrbb DDSS
Forest
GG rrBb DDSS
Indicolite
GG rrBB DDSS
Navy
GG RrBB DDSS
Midnight
GG RRBB DDSS
Oil
GG RrBb DDSS
Sn  
Cranberry
GG RRBb DDSn
Ruby
GG RRbb DDSn
Sienna
GG Rrbb DDSn
Mustard
GG rrbb DDSn
Forest
GG rrBb DDSn
Indicolite
GG rrBB DDSn
Navy
GG RrBB DDSn
Midnight
GG RRBB DDSn
Oil
GG RrBb DDSn
nn  
Cherry
GG RRBb DDnn
Scarlet
GG RRbb DDnn
Copper
GG Rrbb DDnn
Honey
GG rrbb DDnn
Emerald
GG rrBb DDnn
Ocean
GG rrBB DDnn
Indigo
GG RrBB DDnn
Royal Purple
GG RRBB DDnn
Iridescent
GG RrBb DDnn
DNSS  
Cherry
GG RRBb DNSS
Scarlet
GG RRbb DNSS
Copper
GG Rrbb DNSS
Honey
GG rrbb DNSS
Emerald
GG rrBb DNSS
Ocean
GG rrBB DNSS
Indigo
GG RrBB DNSS
Royal Purple
GG RRBB DNSS
Iridescent
GG RrBb DNSS
Sn  
Cherry
GG RRBb DNSn
Scarlet
GG RRbb DNSn
Copper
GG Rrbb DNSn
Honey
GG rrbb DNSn
Emerald
GG rrBb DNSn
Ocean
GG rrBB DNSn
Indigo
GG RrBB DNSn
Royal Purple
GG RRBB DNSn
Iridescent
GG RrBb DNSn
nn  
Fuchsia
GG RRBb DNnn
Carnelian
GG RRbb DNnn
Tangerine
GG Rrbb DNnn
Gold
GG rrbb DNnn
Leaf
GG rrBb DNnn
Sky
GG rrBB DNnn
Cobalt
GG RrBB DNnn
Amethyst
GG RRBB DNnn
Rainbow
GG RrBb DNnn
PD/NN--  
Fuchsia
GG RRBb PD/NN
Carnelian
GG RRbb PD/NN
Tangerine
GG Rrbb PD/NN
Gold
GG rrbb PD/NN
Leaf
GG rrBb PD/NN
Sky
GG rrBB PD/NN
Cobalt
GG RrBB PD/NN
Amethyst
GG RRBB PD/NN
Rainbow
GG RrBb PD/NN
PNnn  
Fuchsia
GG RRBb PNnn
Carnelian
GG RRbb PNnn
Tangerine
GG Rrbb PNnn
Gold
GG rrbb PNnn
Leaf
GG rrBb PNnn
Sky
GG rrBB PNnn
Cobalt
GG RrBB PNnn
Amethyst
GG RRBB PNnn
Rainbow
GG RrBb PNnn
Sn  
Tulip
GG RRBb PNSn
Coral
GG RRbb PNSn
Apricot
GG Rrbb PNSn
Lemon
GG rrbb PNSn
Jade
GG rrBb PNSn
Aquamarine
GG rrBB PNSn
Azure
GG RrBB PNSn
Wysteria
GG RRBB PNSn
Opal
GG RrBb PNSn
SS  
Tulip
GG RRBb PNSS
Coral
GG RRbb PNSS
Apricot
GG Rrbb PNSS
Lemon
GG rrbb PNSS
Jade
GG rrBb PNSS
Aquamarine
GG rrBB PNSS
Azure
GG RrBB PNSS
Wysteria
GG RRBB PNSS
Opal
GG RrBb PNSS
PPnn  
Tulip
GG RRBb PPnn
Coral
GG RRbb PPnn
Apricot
GG Rrbb PPnn
Lemon
GG rrbb PPnn
Jade
GG rrBb PPnn
Aquamarine
GG rrBB PPnn
Azure
GG RrBB PPnn
Wysteria
GG RRBB PPnn
Opal
GG RrBb PPnn
Sn  
Rose
GG RRBb PPSn
Salmon
GG RRbb PPSn
Shell
GG Rrbb PPSn
Vanilla
GG rrbb PPSn
Mint
GG rrBb PPSn
Ice
GG rrBB PPSn
Cloud
GG RrBB PPSn
Lilac
GG RRBB PPSn
Pearl
GG RRBb PPSn
SS  
Rose
GG RRBb PPSS
Salmon
GG RRbb PPSS
Shell
GG Rrbb PPSS
Vanilla
GG rrbb PPSS
Mint
GG rrBb PPSS
Ice
GG rrBB PPSS
Cloud
GG RrBB PPSS
Lilac
GG RRBB PPSS
Pearl
GG RrBb PPSS
DDSS  
Byzantine
Gg/gg RRBb DDSS
Chocolate
Gg/gg RRbb DDSS
Terra Cotta
Gg/gg Rrbb DDSS
Walnut
Gg/gg rrbb DDSS
Moss
Gg/gg rrBb DDSS
Peacock
Gg/gg rrBB DDSS
Dusk
Gg/gg RrBB DDSS
Raisin
Gg/gg RRBB DDSS
Jet
Gg/gg RrBb DDSS
Sn  
Byzantine
Gg/gg RRBb DDSn
Chocolate
Gg/gg RRbb DDSn
Terra Cotta
Gg/gg Rrbb DDSn
Walnut
Gg/gg rrbb DDSn
Moss
Gg/gg rrBb DDSn
Peacock
Gg/gg rrBB DDSn
Dusk
Gg/gg RrBB DDSn
Raisin
Gg/gg RRBB DDSn
Jet
Gg/gg RrBb DDSn
nn  
Violet
Gg/gg RRBb DDnn
Cinnamon
Gg/gg RRbb DDnn
Salamander
Gg/gg Rrbb DDnn
Latte
Gg/gg rrbb DDnn
Fern
Gg/gg rrBb DDnn
Myrtle
Gg/gg rrBB DDnn
Steel
Gg/gg RrBB DDnn
Grape
Gg/gg RRBB DDnn
Smoke
Gg/gg RrBb DDnn
DNSS  
Violet
Gg/gg RRBb DNSS
Cinnamon
Gg/gg RRbb DNSS
Salamander
Gg/gg Rrbb DNSS
Latte
Gg/gg rrbb DNSS
Fern
Gg/gg rrBb DNSS
Myrtle
Gg/gg rrBB DNSS
Steel
Gg/gg RrBB DNSS
Grape
Gg/gg RRBB DNSS
Smoke
Gg/gg RrBb DNSS
Sn  
Violet
Gg/gg RRBb DNSn
Cinnamon
Gg/gg RRbb DNSn
Salamander
Gg/gg Rrbb DNSn
Latte
Gg/gg rrbb DNSn
Fern
Gg/gg rrBb DNSn
Myrtle
Gg/gg rrBB DNSn
Steel
Gg/gg RrBB DNSn
Grape
Gg/gg RRBB DNSn
Smoke
Gg/gg RrBb DNSn
nn  
Heliotrope
Gg/gg RRBb DNnn
Toast
Gg/gg RRbb DNnn
Peach
Gg/gg Rrbb DNnn
Desert
Gg/gg rrbb DNnn
Olive
Gg/gg rrBb DNnn
Persian
Gg/gg rrBB DNnn
Slate
Gg/gg RrBB DNnn
Heather
Gg/gg RRBB DNnn
Stone
Gg/gg RrBb DNnn
PD/NN--  
Heliotrope
Gg/gg RRBb PD/NN
Toast
Gg/gg RRbb PD/NN
Peach
Gg/gg Rrbb PD/NN
Desert
Gg/gg rrbb PD/NN
Olive
Gg/gg rrBb PD/NN
Persian
Gg/gg rrBB PD/NN
Slate
Gg/gg RrBB PD/NN
Heather
Gg/gg RRBB PD/NN
Stone
Gg/gg RrBb PD/NN
PNnn  
Heliotrope
Gg/gg RRBb PNnn
Toast
Gg/gg RRbb PNnn
Peach
Gg/gg Rrbb PNnn
Desert
Gg/gg rrbb PNnn
Olive
Gg/gg rrBb PNnn
Persian
Gg/gg rrBB PNnn
Slate
Gg/gg RrBB PNnn
Heather
Gg/gg RRBB PNnn
Stone
Gg/gg RrBb PNnn
Sn  
Orchid
Gg/gg RRBb PNSn
Coffee
Gg/gg RRbb PNSn
Melon
Gg/gg Rrbb PNSn
Sand
Gg/gg rrbb PNSn
Lime
Gg/gg rrBb PNSn
Duck Egg
Gg/gg rrBB PNSn
Pigeon
Gg/gg RrBB PNSn
Lavender
Gg/gg RRBB PNSn
Silver
Gg/gg RrBb PNSn
SS  
Orchid
Gg/gg RRBb PNSS
Coffee
Gg/gg RRbb PNSS
Melon
Gg/gg Rrbb PNSS
Sand
Gg/gg rrbb PNSS
Lime
Gg/gg rrBb PNSS
Duck Egg
Gg/gg rrBB PNSS
Pigeon
Gg/gg RrBB PNSS
Lavender
Gg/gg RRBB PNSS
Silver
Gg/gg RrBb DPNSS
PPnn  
Orchid
Gg/gg RRBb PPnn
Coffee
Gg/gg RRbb PPnn
Melon
Gg/gg Rrbb PPnn
Sand
Gg/gg rrbb PPnn
Lime
Gg/gg rrBb PPnn
Duck Egg
Gg/gg rrBB PPnn
Pigeon
Gg/gg RrBB PPnn
Lavender
Gg/gg RRBB PPnn
Silver
Gg/gg RrBb PPnn
Sn  
Dawn
Gg/gg RRBb PPSn
Almond
Gg/gg RRbb PPSn
Blush
Gg/gg Rrbb PPSn
Champagne
Gg/gg rrbb PPSn
Gooseberry
Gg/gg rrBb PPSn
Seafoam
Gg/gg rrBB PPSn
Mist
Gg/gg RrBB PPSn
Thistle
Gg/gg RRBB PPSn
White
Gg/gg RrBb PPSn
SS  
Dawn
Gg/gg RRBb PPSS
Almond
Gg/gg RRbb PPSS
Blush
Gg/gg Rrbb PPSS
Champagne
Gg/gg rrbb PPSS
Gooseberry
Gg/gg rrBb PPSS
Seafom
Gg/gg rrBB PPSS
Mist
Gg/gg RrBB PPSS
Thistle
Gg/gg RRBB PPSS
White
Gg/gg RrBb PPSS

Few simple example griffs here. Check the Anatomy Guide to see where all the body parts are for each breed. The 6 main ones are in linked pairs: base and additional body colour, ventral (inner) covert and flight feathers, and dorsal (outer) covert and flight feathers.
At conception, there's a 90% chance that the additional colour will inherit its 6 colour alleles from the base colour. So if the base is Scarlet, the additional will probably be Scarlet too. However the 2 shade alleles are independent, inherited from the parents' additional colours, so it may be a different shade of Scarlet.
In the other 10% of cases, the entire additional colour will be independently calculated according to the parents'. It might turn out completely different to the base. Tan and Chocolate? Nice. Midnight and Lime? Maybe not...
The 2 inner and 2 outer wing areas are similarly related. We believe ancient tribes selectively bred them to be this way, as the 'same colour, different shade' combos tend to look better than opposing colours. But occasionally, you may get babies with wildly clashing colours in all their body parts. Whether you'll find them attractive or hideous, who knows?!

Eye Colours

. . .
. . .
. . .

These simply use a Red and a Blue gene, which replace the natural Gold colour. All creatures with Albinism will have pinkish eyes, regardless of these genes. Those with Leucism will have pale colourless eyes. Other mutations shift the eye colours, like other body parts.

Cere, Eyelids, Paws

GGGggg
s+s+. . .
s+s. . .
ss. . .
s-s. . .

Only visible on some breeds. Here, the lightest set of colours can be achieved with two Shade combos, s-s- or s-s.
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