Can You Have Green Eyes If Your Parents Have Brown and Blue?

Eye Color Basics – The Genetics Behind Those Baby Blues (or Greens)

Let’s kick it off with a little biology, shall we? Eye color is determined by genetics—mainly the amount and distribution of melanin in the iris. More melanin? You get brown eyes. Less? Blue. Somewhere in the middle? You guessed it: green, hazel, or grey.

Traditionally, people thought of eye color like a simple dominant-recessive trait. Brown dominates blue, blue is recessive. So by that logic, two brown-eyed parents couldn’t have a blue-eyed child, right? Well... not quite. It’s more complicated (and more fun, honestly).

Polygenic traits: More than just one gene

Eye color isn’t controlled by one single gene. Nope. Scientists now know it’s polygenic, meaning multiple genes work together to determine the final outcome. That’s why two blue-eyed parents can have a green-eyed kid. Or why someone with a brown-eyed mom and a blue-eyed dad might end up with... green eyes. Yep, it’s totally possible.

So... Can You Have Green Eyes If Your Parents Have Brown and Blue?

Short answer: Yes, you absolutely can.

Now the long-ish answer: Your eye color depends on how genes interact. If one parent gives you a brown-eye allele (version of a gene) and the other gives you a blue-eye allele, your genetic mix might just hit the sweet spot for intermediate melanin levels. Voilà—green eyes.

What really influences green eyes?

Green eyes are kinda rare—only about 2% of the global population has them. They often result from a combination of:

• A brown or hazel eye gene that’s not fully expressed

• A blue eye gene that tones down melanin production

• And, weirdly enough, light scattering in the iris (which affects how we see color)

Honestly, green eyes are like nature’s little wildcard.

Real-Life Examples and Anecdotes

I have this friend, Lisa—her mom has rich, deep brown eyes, and her dad's got these icy blue eyes that look like they belong on a movie poster. Lisa? Straight-up emerald green. Growing up, people always asked if she wore colored contacts (she didn’t). Her grandma apparently had green eyes too, which totally tracks—eye color can skip generations.

And actually, I’ve heard tons of stories like this. Someone's got a green-eyed uncle, or a cousin twice removed with hazel peepers. Genetics is wild like that.

Eye Color and Family Traits – It's Not an Exact Science

Skipping generations: totally normal

If one of your grandparents had green or hazel eyes, that trait might lie dormant in your parents but show up in you. Eye color genes can "hide out" and pop up when the right combo appears. Think of it like a genetic lottery—sometimes, you just hit the green jackpot.

Environmental effects?

Well, sort of. Eye color doesn’t really change much due to environment, but it can look different depending on lighting, clothing, or even mood. Babies often start with blue or greyish eyes, then settle into their true color around age 1. And some people's eyes seem to “shift” slightly between green and hazel depending on the light. (It’s not magic. Just optics.)

Final Thoughts – Genetics Isn’t a Straight Line

So yeah, if your mom’s got brown eyes and your dad has blue ones, green eyes are totally in the realm of possibility. Eye color isn't a strict A+B=C formula—it's more like throwing dice with a handful of colored marbles.

Nature loves mixing things up. Your unique eye color might be the result of generations of hidden genes playing tag in your DNA. Green eyes? Lucky you. Rare, beautiful, and scientifically fascinating.

And honestly... who doesn’t love a good genetic plot twist?

Is 165 cm normal for a 15 year old?

The predicted height for a female, based on your parents heights, is 155 to 165cm. Most 15 year old girls are nearly done growing. I was too. It's a very normal height for a girl.

Is 160 cm too tall for a 12 year old?

How Tall Should a 12 Year Old Be? We can only speak to national average heights here in North America, whereby, a 12 year old girl would be between 137 cm to 162 cm tall (4-1/2 to 5-1/3 feet). A 12 year old boy should be between 137 cm to 160 cm tall (4-1/2 to 5-1/4 feet).

How tall is a average 15 year old?

Average Height to Weight for Teenage Boys - 13 to 20 Years

How to get taller at 18?

Staying physically active is even more essential from childhood to grow and improve overall health. But taking it up even in adulthood can help you add a few inches to your height. Strength-building exercises, yoga, jumping rope, and biking all can help to increase your flexibility and grow a few inches taller.

Is 5.7 a good height for a 15 year old boy?

Generally speaking, the average height for 15 year olds girls is 62.9 inches (or 159.7 cm). On the other hand, teen boys at the age of 15 have a much higher average height, which is 67.0 inches (or 170.1 cm).

Can you grow between 16 and 18?

Most girls stop growing taller by age 14 or 15. However, after their early teenage growth spurt, boys continue gaining height at a gradual pace until around 18. Note that some kids will stop growing earlier and others may keep growing a year or two more.

Can you grow 1 cm after 17?

Even with a healthy diet, most people's height won't increase after age 18 to 20. The graph below shows the rate of growth from birth to age 20. As you can see, the growth lines fall to zero between ages 18 and 20 ( 7 , 8 ). The reason why your height stops increasing is your bones, specifically your growth plates.