There's a little genetic tweak that makes the combination of red hair and blue eyes the rarest of them all. The same Nature study mentioned above found that another gene variant, HERC2, interacts with both the MC1R gene and the OCA2 gene—and it can shut off the redhead gene while expressing blue eyes and blonde hair.
The title of rarest hair colour/eye colour combination belongs to red haired folks with blue eyes. According to Medical Daily, both the blue eye trait and the red hair trait are recessive, so their likelihood of simultaneous appearance is pretty slim. Just ask anyone who's pieced together a Punnett Square.
Green is considered by some to be the actual rarest eye color in the world, though others would say it's been dethroned by red, violet, and grey eyes. Green eyes don't possess a lot of melanin, which creates a Rayleigh scattering effect: Light gets reflected and scattered by the eyes instead of absorbed by pigment.
Of those four, green is the rarest. It shows up in about 9% of Americans but only 2% of the world's population. Hazel/amber is the next rarest of these.
Natural red hair is the rarest hair color in the world, only occurring in 1 to 2% of the global population. Since red hair is a recessive genetic trait, it is necessary for both parents to carry the gene, whether or not they themselves are redheaded.
Blonde is Crowned the Sexiest Hair Colour of 2021!
When asked which hair colour they think is sexiest, almost a third of people said they have no preference. However, of those who did have a colour preference: Most say that blonde hair is the sexiest (31.5%)
Black hair is the darkest and most common of all human hair colors globally, due to larger populations with this dominant trait. It is a dominant genetic trait, and it is found in people of all backgrounds and ethnicities.
Violet Eyes
This color is most often found in people with albinism. It is said that you cannot truly have violet eyes without albinism. Mix a lack of pigment with the red from light reflecting off of blood vessels in the eyes, and you get this beautiful violet!
We found that green is the most popular lens colour, with brown coming in a close second, despite it being one of the most common eye colours. Although blue and hazel are seen as the most attractive eye colours for men and women they are surprisingly the least popular.
Grey eyes are one of the rarest eye colors. Less than 3% of the global population has grey eyes. They're most commonly found in people of Northern and Eastern European ancestry. Like all eye colors, they're a product of the amount of melanin in the iris.
Yes, natural purple eyes are possible. There are many different shades of blues and greys out there and many in-between colors. Although very rare, some people's natural pigmentation can even be violet or purple in color.
Black hair and blue eyes is a much more rare combination than is blonde hair and blue eyes. The reason why these two traits are linked is that the genes responsible for hair and eye color happen to be close together on the same chromosomes.
'It's extremely rare for people to have hair that is naturally a strawberry blonde color. Basically, strawberry blonde is mostly based on red tones, with blonde highlights dotted here and there. It takes its name from the Italian renaissance.
And when you meet a red head with blue eyes, you are looking at the rarest colour combination of all for human beings. Around 17 per cent of people have blue eyes, and when combined with 1-2 per cent having red hair, the odds of having both traits are around 0.17 per cent.
Blue eyes are crowned the sexiest among men and women
According to our research, blue is the sexiest eye colour, as the majority of the world's sexiest people, both male and female, have blue eyes.
A recent survey conducted by CyberPulse, a division of Impulse Research Corporation in Los Angeles uncovered this colorful research. Intelligence was the number one trait associated with brown, the most common eye color in the U.S., by 34 percent of respondents.
Those warm colors you think about (red, orange, yellow, and some violets) are noticeable and convey security. They seem to move toward the eye, and they bring a sense of comfort and warmth. Cooler colors (blue, green, some violets, and yellowish-green colors) remind us of nature.
Amber colored eyes may be seen in cats and other species on a regular basis, but it's very rare in humans. People with solid orange/gold eyes have a unique pigment called pheomelanin dominant within the iris. While it's also found in people with green eyes, it's a much smaller amount.
This rare condition only affects about 3% to 7% of people. If you're born with it, your liver doesn't make enough of an enzyme it needs to process bilirubin. The result is higher levels of bilirubin in your blood and yellow eyes.
Pink eye is an inflammation of the transparent membrane that lines the eyelid and eyeball. This membrane is called the conjunctiva. When small blood vessels in the conjunctiva become swollen and irritated, they're more visible. This is what causes the whites of the eyes to appear reddish or pink.
Yes, only 11% of the population have curly hair.
The rarest skin color in the world is believed to be the white from albinism, a genetic mutation that causes a lack of melanin production in the human body. Albinism affects 1 in every 3,000 to 20,000 people.
Red is the rarest hair color, according to Dr. Kaplan, and that's because so few MC1R variants are associated with the shade. “Only three variants are associated with red hair,” she says. “If a person has two of these three variants, they almost certainly have red hair.