What eye color do you stereotypically associate with red hair?

[Arbërori]

Green, I usually imagine leprechauns like this:

[de Burgh II]

This is actually interesting, as blonde hair almost always goes with blue eyes, but not red hair, does anyone know why?

I guess its because everything is polygenic; meaning that physical traits such as hair color and eye color is controlled by many genes. Hence, contrary to the "dominant" or "recessive" notion; you have the idea of "incomplete dominance." Which follows along the line of this:

Definition: Incomplete dominance is a form of intermediate inheritance in which one allele for a specific trait is not completely expressed over its paired allele. This results in a third phenotype in which the expressed physical trait is a combination of the phenotypes of both alleles. Unlike in complete dominance inheritance, one allele does not dominate or mask the other allele. Incomplete dominance occurs in the polygenic inheritance of traits such as eye color and skin color.

https://www.thoughtco.com/incomplete...inition-373471

Meaning that the diverse pigmentation of both the eyes and hair follicles blends together where one hair/eye color isn't dominant of the other; it is merely an intermediate composition of the different genes. Which is why a person can have a hair color that is brown with reddish tinge , but your beard is red. Everything on the body such as beard follicles, hair follicles, chest hair, etc. is independently dictated by its own set of genes encoded prenatally at birth.

Example of incomplete dominance:

[...] To get to the bottom of this ginger mystery, I contacted the Erfocentrum, the Dutch national information centre for genetics and hereditary traits.

Genetically speaking, hair color is pretty complex. "The genes that determine hair color are so-called 'incomplete dominant hereditary traits.' This means that there isn't one single gene that's dominant over the rest, but all genes influence each other," Petra Haak-Bloem, specialist at the centre, tells me.

The same genes can express themselves differently for anyone. That allows for lots of possibilities, one of which is that the color of your head hair differs from the color of your armpit hair, pubes, or beard.

"Generally speaking, people inherit hair color not only from their parents, but also from their grandparents and earlier ancestors. So it's entirely possible that one distant ancestor had a hair color that suddenly appears again though a certain combination of genes—and that can be quite unexpected for parents," Haak-Bloem continued.

No big surprise there: your genes define your hair color. But why do so many men have deviating red beards?

The shade of hair color is determined by the amount of melanin, or pigment, in the hair. Your DNA not only encodes what kind of pigment you have, but also how much of it. "For white people the shades are dependent on two sorts of melanin: eumelanine (black pigment) and pheomelanine (red pigment). Hair cells of dark haired people only contain eumelanine. Blondes have less eumelanine. And redheads' hair contains mostly pheomelanine," Haak-Bloem says. [...]

https://motherboard.vice.com/en_us/a...t-not-red-hair

Nevertheless, I would assume the genes for blonde hair is closely linked with blue eyes perhaps as "overlapping genes" that influence each other in a way that makes them more prevalent than say red hair that is encoded on a different set of genes that is influenced in its own peculiar manner. Nevertheless, there are some deviations to this since you can theoretically have people with blonde hair and brown eyes in some cases.

Seeing genetics is polygenic and randomized; it wouldn't surprise me if that was a possibility because genes are very unpredictable overall.

[Iloko]

idk, maybe blue or green.

[Kelmendasi]

All red heads I have seen irl have brown eyes, so far I have seen a red head Albo who has brown eyes and a red head French guy who has brown eyes

[Hadouken]

blue-gray

[de Burgh II]

[Linebacker]

Contrary to the stereotype stating redheads are usually green eyed - its wrong,redheads are usually blue eyed.

[Wrong]

Green, though it is not the truth.

[RenaRyuguu]

I think it's half half like you can see people with naturally dark ginger hair and brown eyes and with fair ginger hair and light eyes.

[placebo]

idk why but i think brown and then blue.

all redheads i've seen in irl had brown or blue eyes. my great grandma has light red hair with blue eyes and two of my second cousins have dark red hair with brown eyes.