Isabella and Tan French Bulldog
The ultra-pale champagne-lilac base with warm tan point markings. Four loci combine to create one of the rarest Frenchie combinations.
What Makes an Isabella and Tan Frenchie Special
The Isabella and Tan French Bulldog is the result of four separate loci all expressing recessive alleles simultaneously. This makes it one of the rarest and most valuable color + pattern combinations in the entire breed.
The base color comes from d/d (dilute) + b/b (testable chocolate) + co/co (cocoa), which together produce the ultra-pale champagne-lilac shade. Then the at/at (or at/a) genotype at the A-locus adds the warm tan points on the eyebrows, muzzle, cheeks, chest, and legs.
The visual result is breathtaking: a nearly-white body with a faint champagne-lilac undertone, contrasted by rich warm tan markings. The rarity of producing this combination — often 1 in 64 to 1 in 256 puppies — is what drives the premium pricing.
The Isabella and Tan Genotype
D-Locus
Required: d/d
Dilute allele dilutes black pigment to blue-gray. The first step toward the pale Isabella base.
B-Locus
Required: b/b
Testable chocolate adds a warm brown undertone that shifts the dilute base toward champagne.
Co-Locus
Required: co/co
Cocoa further lightens the color, creating the ultra-pale champagne-lilac shade unique to Isabella.
A-Locus
Required: at/at or at/a
The tan point allele produces the warm markings on eyebrows, muzzle, cheeks, chest, and legs.
Why Isabella and Tan Is So Rare
1 Locus
25%
d/d or b/b or co/co or at/* — single recessive is common
2 Loci
6.25%
Lilac (d/d + co/co) or Blue and Tan (d/d + at/*) — uncommon
3 Loci
1.56%
Isabella (d/d + b/b + co/co) — rare, high value
4 Loci
0.39%
Isabella and Tan — ultra-rare, 1 in 256 from carriers
Isabella and Tan Frenchie Pricing Guide
Pet Quality
$15,000 – $20,000
Standard Isabella and tan with acceptable tan distribution and good conformation.
Breed Quality
$20,000 – $30,000
Clean structure, vivid pale color, sharp tan points, full health clearances.
Ultra / Show
$30,000 – $45,000+
Near-perfect structure, proven pedigree, championship lines, rare color saturation.
Calculate Isabella and Tan Probabilities
Enter parent genotypes into our Frenchie DNA Calculator to predict exactly what colors and patterns each litter will produce — including Isabella and Tan outcomes.
Isabella and Tan Frenchie FAQ
What is an Isabella and Tan French Bulldog?
An Isabella and Tan French Bulldog has the lightest champagne-lilac base coat created by d/d (dilute) + b/b (testable chocolate) + co/co (cocoa), with warm tan point markings from the A-locus. This is one of the rarest and most valuable Frenchie color + pattern combinations.
What is the genotype of an Isabella and Tan Frenchie?
The genotype is d/d + b/b + co/co + at/at (or at/a). All four loci must carry the recessive alleles: D-locus for dilute, B-locus for testable chocolate, Co-locus for cocoa, and A-locus for tan points. Missing any one of these produces a different color.
How is Isabella and Tan different from Lilac and Tan?
Lilac and Tan is d/d + co/co (two loci). Isabella and Tan adds b/b (testable chocolate), making it d/d + b/b + co/co (three loci). The additional chocolate gene lightens the already-pale lilac into an even paler, champagne-lilac shade that is distinctively lighter than lilac.
How rare are Isabella and Tan Frenchies?
Extremely rare. To produce an Isabella and Tan puppy, both parents must contribute the recessive alleles at four separate loci. The probability of getting d/d + b/b + co/co + at/* from two carriers is roughly 1 in 64 to 1 in 256 depending on parent genotypes. This rarity is why they command premium prices.
How much does an Isabella and Tan Frenchie cost?
Isabella and Tan French Bulldogs typically range from $15,000 to $25,000 for pet quality. Premium specimens with clean structure, vivid pale color, and sharp tan points can reach $25,000–$40,000. The four-locus requirement makes this one of the most expensive Frenchie combinations.
Can an Isabella and Tan carry other genes?
Yes. An Isabella and Tan can carry e/e (cream) as a hidden gene, which would produce a Platinum and Tan if bred to another e/e carrier. It can also carry M/m (merle) to produce Isabella Merle and Tan, or l/l (longhair) to produce a Fluffy Isabella and Tan — each adding significant value.