As the population grows and people have babies, the genes for less melanin will become more common. That makes the link between lighter eyes, hair, and skin tighter. So that's why you see people with blond hair typically have blue eyes!
Is it possible for an adult with naturally blond hair to have brown eyes? Inheritance of eye color is more complicated than we had once thought. So the answer is yes, but the combination is extremely rare.
So let's plug in what we know probability of blonde hair is 28.3 Probability or percentage of blue eyed people is 16.6%. And then the probability of both blond hair and blue eyes is 9.3%.
Notably, as seen in Table 4, the 'blond' hair trait has a high conditional probability for 'blue' eye color (80.4%) but also for 'intermediate' eyes (70.7%). On the other hand, 'blond' and 'brown' hair colors are almost equally likely (47.9% vs 51.8%) given the presence of 'brown' eyes.
Blonde fact #4: Not all blondes have blue eyes
That's why so many people around the world have black strands and brown eyes. Lighter tint gives rise to lighter coloured eyes, including blue, but also varying tones of green and grey. So, just because you have blonde hair, it doesn't mean that you have blue eyes too.
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.
True blonde is also a rare hair color, and the Daily Mail reports that only 12.7 percent of women have pure blonde hair, and only 9.9 percent of men do. Surprisingly, many of the genetic differences identified by the researchers correlated with factors other than pigmentation like hair texture and growth.
Some sources, such as Eupedia, claim that in central parts of Norway, Sweden, Denmark, Iceland and Finland, 80% of the population is blonde, with natural fair-haired people in other Baltic Countries (Latvia, Lithuania, Estonia, and other parts of Scandinavia) making up 50-79% of the population.
Finland. Finland has the highest blond hair population by percentage of the total population. Nearly 80% of the population has blond hair, and an astounding 89% of the population has blue eyes. Blond hair and blue eyes are one of the rarest combinations in the world.
Because blond hair tends to turn brown with age, natural blond hair is significantly less common in adulthood; according to the sociologist Christie Davies, only around five percent of adults in Europe and North America are naturally blond.
'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.
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.
The genes for blue eyes and blonde hair are recessive, meaning both parents must have the genes for them to be expressed in their offspring.
The reason for this change is because the amount of eumelanin in your hair increases as you mature, according to some research.
What eye color do natural blondes have? Having blonde hair doesn't necessarily mean having blue eyes. It's a stereotype. Although red hair, light eyes, and light skin do tend to go together, blondies can have eyes that are blue, green, brown, and more.
Like black hair, brown hair occurs more commonly in certain countries, including Europe, Australia, Canada, and Asia.
The international scientific team found a total of 124 genes that play a major role in determining human hair colour and, unexpectedly, discovered that women were twice as likely to be naturally blonde than men. In comparison, they also revealed that men were three times as likely as women to have black hair.
Take this 2011 study from dating app Badoo, for example. A couple of thousand UK men were polled and 33.1% of them revealed they found brunettes more attractive than blondes. Though 29.5% found blondes more attractive, brown-haired beauties still edged ahead of the pack.
The study found that the average IQ of blondes was actually slightly higher than those with other hair colors, but that finding isn't statistically significant, said Zagorsky, who works in the university's Center for Human Resource Research (CHRR).
True Strawberry Blonde
At its best, strawberry blonde is a delicious, warm combination of blonde and red. The shade, which is sometimes called Venetian blonde, is a pale but vibrant take on red. It's flattering to a range of fair and medium skin tones and can lean either warm or cool.
As a result of the relatively low levels of sunlight for most of the year, humans in Scandinavia began to develop symptoms of vitamin D deficiency: namely lighter skin and hair colour. No fellas around? With the sun rarely making an appearance through the Danish winter, it's easy to see how this theory makes sense.
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.
Did Elizabeth Taylor have violet eyes? These days, thanks to colored contact lenses, anyone can have violet-colored eyes . Taylor didn't come by her purple peepers that way; the first tinted contact lenses weren't commercially available until 1983. Taylor's eye color was the real deal.
Likewise, two brown-eyed parents can have a child with blue eyes, although this is also uncommon.