Blue Maine Coon: Yes, That Gray Cat Is Officially "Blue"
Why registries call a gray Maine Coon blue, how the dilute coat works, what blue smoke and blue silver mean, and what these cats actually sell for.
Published August 20, 2026Updated August 27, 2026 4 min read
Contents
The soft gray Maine Coon you fell for has a registry name that confuses everyone once: blue. Grey to UK eyes, gray in the US, blue on every . All five major registries (, , , , ) use the word "blue" for this coat, so a "blue Maine Coon" in a breeder listing is not a strange rarity, it is the standard name for one of the breed's classic solid colors, sitting alongside black, white, red and cream.
Where blue comes from
One softened sentence of genetics explains the whole coat: blue is diluted black, made by a recessive trait that needs a copy from each parent, the same mechanism that softens red to cream. That recessive logic is why two blue parents breed true, why blue can skip generations through carrier parents, and why a blue kitten can surprise a breeder whose last three litters were all brown tabby. The blue sits anywhere the pattern rules allow: solid blue, blue tabby, blue with white, .
Blue smoke and blue silver: the showstoppers
Two versions of this coat stop people mid-scroll. Blue smoke looks solid blue at rest, then the coat parts and reveals a pale, almost white undercoat: the cat seems to change color as it moves. Blue silver wears the pale undercoat over a cooler, brighter tabby coat. Both belong to the silver/smoke family every registry recognizes, and both routinely sit at the expensive end of breeder price lists (see below). Photos do these coats more justice than words, which is exactly why this page's gallery matters.
Is a blue Maine Coon the same as a grey Maine Coon?
Same cat, three words. UK sites and UK searches say grey, US prose says gray, pedigrees and standards say blue. If you are comparing listings across countries, translate freely: a "blue smoke" in Ontario, a "grey boy" in Manchester and a "gray Maine Coon" in Texas can all be the same coat. On this site the registry word leads, because it is the one that never changes meaning between markets.
What does a blue Maine Coon cost?
Blue itself is a standard color, so a solid blue kitten generally prices like the breed's normal range in its market, covered per country on the price page. The smoke and silver versions are where premiums show, and here are the two named, dated examples from our four-market research (August 2026):
Blue smoke, top of list
CA$2,500
-registered Ontario cattery: blue smoke and blue silver with white at the very top of its own list, above brown tabbies (CA$2,000) and whites (CA$1,600)
Blue smoke, live listing
£1,650
-registered, ID-verified blue smoke boy on the UK's biggest marketplace, upper band of registered kittens that day
Two named sellers in two markets, not a worldwide rule: a price is only ever real in its own market.
Blue coat or blue eyes? Two different questions
Good to know
A quick disambiguation, because searches mix them. This page is about the blue COAT. Blue EYES on a Maine Coon are a separate topic with a health angle: blue and odd eyes are normally reserved for white or white-marked cats, US breeders price blue-eyed lines at a documented premium, and a specific blue-eyed lineage in this breed carries a tested hearing risk. Before paying extra for blue eyes, read the deafness section of our colors guide and ask the breeder about a hearing test. And as always: something wrong with your cat means call your vet, out of hours an emergency clinic.
The vet's take
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Frequently asked questions
Can Maine Coons have blue eyes?
Only white or white-marked Maine Coons can be shown with blue or odd eyes under any registry, and the UK's GCCF restricts it to pure white cats. A blue-COATED Maine Coon has green, gold or copper eyes.
How much is a blue Maine Coon?
Solid blue: the breed's standard range for your market (four-market figures on the price page). Blue smoke and blue silver: routinely top-of-list, like the Ontario cattery pricing them at CA$2,500 against CA$1,600 for white (August 2026).
Is blue rare?
No registry ranks colors by rarity and no population counts exist, so "rare" in a listing is marketing. Blue is a classic, fully standard color; a clean, even blue is simply beautiful, which is not the same thing as scarce.
Do blue Maine Coon kittens change color?
The adult coat settles through the first year, and smoke undercoats in particular develop over time, so a kitten's exact look, especially smoke versus solid, can shift as it matures.
Community questions
Got a question this page doesn't cover? Ask it: the best ones get published here with their answer.
This is information, not veterinary advice, and it cannot tell you what is wrong with your cat. Our rule is a simple one: if something is wrong with your cat, call your vet, and call an emergency clinic if it is out of hours. Nothing you read here is a reason to wait.
Medical information applies to every reader. Prices, legal duties and common practice do not: unless stated otherwise, they are given for the United States, and they differ in the UK, Canada and Australia, and often between states or provinces. Check with your own vet and your own local authority.
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