Medically the evaluation by Cynthia Taylor Chavoustie, MPAS, PA-C — composed by Kristeen Cherney and Stephanie Watson — update on June 24, 2020

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Red hair and green eyes is a mix that’s thought about rare. The opportunities you or your kid will have it are based upon whether her immediate household members had actually red hair or eco-friendly eyes, despite it can skip generations.

You are watching: What is the rarest eye and hair color combination in the world?

Having red hair or green eyes (or both) all comes down to her genes. Your genetic makeup is based upon a mix of markers your parents have passed come you.

While having actually red hair and green eye isn’t common, it’s additionally not impossible, specifically if there’s a background of the combination on both sides of her family.

Red hair and also green eyes with each other is a specifically rare occurrence. Both traits room the result of recessive genes, simply as blue eye or O blood type is.

Being recessive or dominant has nothing to do with even if it is or not a properties is common. Still, the mix of red hair and green eyes often tends to be unusual in today’s population.

While the odds of having red hair and also green eyes relies on a range of factors, it’s amazing to look at the genes behind this combination. Each person’s DNA includes 20,000 genes. Just a couple of of these gene dictate hair color and eye color.


The hair, skin, and also eye colors you’re born with space all regulated by your genes. Her parents passed these genes down to you, simply as your parents passed down their hereditary makeup to them.

When it pertains to hair and eye color, part genes are an ext dominant 보다 others. Yet dominant doesn’t have to mean much more common.

What determines her hair, eye, and also skin color is a pigment referred to as melanin. Genes carry out the indict for developing melanin. Your genes determine just how much of this pigment you have, and also therefore, what color hair and eyes friend have.

The MCR1 gene dictates even if it is you have actually red hair, and also it’s recessive. That way you’d have to inherit copies from both parents to have actually this shade combination.

Genes also have variants, known as alleles. At least three different genes control eye color, and there have the right to be more than 2 alleles because that each gene.

For example, the MCR1 gene come in two variants: non-red and red. The non-red version is dominant. Gey, which is one of the genes that determines eye color, come in two forms: Green and blue. Blue is the leading allele.

But the doesn’t phone call the entirety story.

Also an important to how common a color combination is in ~ a given population is i beg your pardon alleles space circulating. Because that example, alleles of the gene OCA2 recognize whether someone has actually brown or not-brown eyes.

In populaces where much more people have the not-brown OCA2 allele — prefer in Scandinavia — the allele for light eyes is an ext common, even though that recessive. Light-eyed people pass their gene to their children, that pass lock to their children, and that eye color perpetuates.

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Red hair and also green eye genes are simply not as usual in populations as other hair and also eye colors.

One study found that the red hair-green eyes genetic combination is one of the rarest, at -0.14 correlation. Having actually red hair and blue eyes is also rarer.