Cat Genetics Guide: Solid Base Colors

Row 1: Dense Colors
1) Black: aa, XoXo or XoY, B-, D-
2) Chocolate: aa, XoXo or XoY, bb or bbl, D-
3) Cinnamon: aa, XoXo or XoY, blbl, D-
4) Orange/Ginger: aa, XOXO or XOY, D-

Row 2: Dilute Colors
5) Grey/Blue: aa, XoXo or XoY, B-, dd, dmdm
6) Lilac : aa, XoXo or XoY, bb or bbl, dd, dmdm
7) Fawn: aa, XoXo or XoY, blbl, dd, dmdm
8) Cream/Buff: aa, XOXO or XOY, dd, dmdm

Row 3: Dilute Modifier Colors
9) Grey Based Caramel (Mud/Mouse): aa, XoXo or XoY, B-, dd, Dm-
10) Lilac Based Caramel (Taupe): aa, XoXo or XoY, bb or bbl, dd, Dm-
11) Fawn Based Caramel (Carmel): aa, XoXo or XoY, blbl, dd, Dm-
12) Cream Based Caramel (Apricot): aa, XOXO or XOY, dd, Dm-

Agouti Locus (A)
A/A: homozygous agouti/tabby
A/a: heterozygous agouti/tabby
a/a: non-agouti/solid/self

Red Locus (O): sex-linked
XO/XO: Homozygous orange color female
XO/Xo: Heterozygous tortie/torbie female
Xo/Xo: Homozygous non-orange color female
XO/Y: orange color male
Xo/Y: non-orange color male
XOY/XoY: chimera tortie/torbie male
XOXoY: Klinefelter tortie/torbie male

Black/Brown Locus (B)
B/B: homozygous black/brown
B/b: heterozygous black/brown carrying chocolate
B/bl: heterozygous black/brown carrying cinnamon
b/b: homozygous chocolate
b/bl: heterozygous chocolate carrying cinnamon
bl/bl: homozygous cinnamon

Dilute Locus (D)
D/D: homozygous dense color
D/d: heterozygous dense color carrying dilute color
d/d: dilute color

Dilute Modifier Locus (Dm)
Dm/Dm: homozygous dilute modifier
Dm/dm: heterozygous dilute modifier carrying non-dilute modifier
dm/dm: non-dilute modifier

Note: Due to the way the orange gene interacts to the agouti gene, non-agouti orange, cream, and apricot cats, nearly always show tabby or ghost tabby markings.