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Chances of Your Baby Eye Color

Baby Eye Colour Predictor

Baby eye colour predictor is a convenient tool for parents to help predict the eye colour of their baby. Whether you are a parent who is expecting a baby or already a parent of a newborn, you tend to get curious about how your babies will turn out or whether they will take after the mother or father’s eyes. If you are one of those parents, don’t worry, it is only natural for you to be curious, and if you see this, you are on the right page!

The baby eye colour predictor is a fun tool to predict the eye colour of your baby, and it can also be used to get an idea of the possible eye colours your baby will inherit genetically based on you and your spouse’s eye colour. If you wish to get an idea of your baby’s eye colour, you need to make our prediction tool work using the eye colour of you and your partner. 

Here is a quick guide for you:

  1. Select the eye colour of the mother from the given three options (Green, Brown, Blue).
  2. Select the eye colour of the father from the given three options (Green, Brown, Blue).
  3. Click on the ‘predict eye colour’ button below and you should get a detailed result!

What Determines The Colour Of A Baby’s Eyes?

When a child is born, they possess two copies of both their mother’s and father’s chromosomes, called homozygous and heterozygous. The homozygous gene is typically passed on to the baby from the mother, while the heterozygous gene is passed on from the father. There are approximately 15 distinct genes that play a part in determining the genetics of an unborn baby, which makes it intricate to predict the eye colour of the baby. Due to this, the outcome of a baby’s gene can be almost anything, even though the genetics of the baby’s family tree are consistent. 

Here are some of the few scientific reasoning that help determine the colour of a baby’s eye—

Homozygous And Heterozygous

Heterozygous and homozygous is a terminology that is used to refer to allele pairs. When a child has two matching alleles, either XX or yy, it is called homozygous. If a child possesses two matching alleles with capital letters, XX, the individual can own dominant genes. On the other hand, if a child possesses two matching alleles with small letters, yy, the individual can own recessive genes. For instance, let us take the case of eye colour. The gene of an unborn baby’s eye colour will consist of 2 alleles, where one allele is X (blue colour) and the other allele is y (brown colour). A baby with homozygous genetics has a high chance of acquiring the eye colour of the two matching allele pairs, which are either XX or yy. Meanwhile, a baby with heterozygous genetics has a higher chance of possessing the eye colour with non-identical chromosomes, which is Xy. So, in other words, the eye colour of your baby can roughly be determined based on the biological father’s and mother’s eye colour and whether their genes are recessive or dominant. 

Dominant Alleles Eye Color

Babies born with green or brown eye colours are said to be born with a dominant gene. So, if you and your spouse have one of these colours, there is a 75% to 95% chance that your baby will be born with one of the dominant alleles eye colours. However, there is still a slight chance that parents of an unborn child with recessive allele eye colour can give birth to a baby with dominant alleles brown eyes. This is the reason why the colour of a baby’s eye cannot be predicted 100%. 

Recessive Alleles Eye Color

Blue eye colour is what we call the recessive alleles eye colour. If both the mother and father of a baby have brown eyes, there is an extremely low chance that the baby will be born with recessive blue eyes. On the other hand, if one of the parents has green eyes and the other has blue eyes, there is still a bigger chance for the child to be born with dominant green eyes. This is because green eye colour comes under the dominant homozygous genetics.


Genotype refers to the alleles possessed by an individual in a specific gene or genetic location. In other words, it is the combination of genes to form a certain trait, such as an individual’s eye colour, hair colour, skin tone, etc. In this case, we are talking about how the genotype of a biological father and biological mother can determine the colour of a baby’s eye. 


Phenotype is a term that is used to refer to a trait that is observable on the outside, in other words, the physical appearance of a human being, such as the height, hair colour, existence and non-existence of illness, blood type, and so on. In this case, it is the colour of the eyes. Phenotype is often used to describe the difference in the DNA of individuals with different traits. The phenotype of a baby is determined by the congenital traits (genotype) and their environmental factors. In some cases, the phenotype of an individual can be directly connected with their genotype; however, environmental factors always play a huge part, such as diet, exposure to matters like industrial wastes and pesticides, living and work environment, and poor habits like smoking and drinking.

Difference Between Homozygous And Heterozygous

We have briefly explained above what homozygous and heterozygous are about and how they help to determine the colour of a baby’s eye. To understand and differentiate better between the two genetic types, here is a quick cheat sheet for you.

Homozygous is an organism that consists of two identical copies of the same alleles for a single trait from both mother and father.Heterozygous is an organism that consists of two different copies of the same alleles for a single trait from both mother and father.
A homozygous baby can possess only 1 classification of allele, which is either a recessive trait or a dominant trait.A heterozygous baby can possess different classifications of alleles, which can be either a recessive trait or a dominant trait. 
For the homozygous gene, self-fertilization takes place continually, where the identical traits are carried down through the generations.For the heterozygous gene, self-fertilisation can result in an unstable crossbreed of traits where the traits can change or shift through the generations.
Homozygous produce only 1 type of gamete, either XX or yy.Heterozygous produce 2 kinds of gametes, either Xy or y.
A homozygous baby can either be born with a dominant gene or a recessive gene. A heterozygous baby can be born with a dominant gene, recessive gene, or both genes blended together.

Through the classifications of homozygous and heterozygous chromosomes, the trait of a living being can be roughly determined to know whether they will obtain the dominant trait or a recessive trait, and the pattern of gene inheritance. 

Eye Colour Chart For A Baby

You can now easily find out the possible eye colour of your baby through our Baby Eye Colour Predictor. However, if you ever face a situation where you do not have the freedom to access our predictor machine, we recommend you refer to our eye colour chat for baby. As we have discussed in the above passages, the colour of a baby’s eyes explains some hypotheses about the distribution of genotype and phenotype.

In the baby eye colour chart below, we have listed some likely eye colour combinations that can result in the phenotype of a baby. This is for the case of parents with heterozygous genes, where the chances of the combinations have an equal probability of occurring. 

Eye Colour Prediction Of Heterozygous Baby

Parents’ Eye ColourBrownGreenBlue
Brown + Brown75%18.75%6.25%
Brown + Green50%37.5%12.5%
Brown + Blue50%25%25%
Green + Green0%75%25%
Green + Blue0%50%50%
Blue + Blue0%0%100%

The baby eye colour chart below shows all the possible combinations of eye colour your baby can obtain based on the possible allele variants of you and your partner, including the cases where both of you have the homozygous genes, is equally likely or has an equal chance of happening.

Baby Eye Colour

Parents’ Eye ColourBrownGreenBlue
Brown + Brown88.89%8.33%2.78%
Brown + Green66.67%25%8.33%
Brown + Blue66.67%16.67%16.67%
Green + Green0%93.75%6.25%
Green + Blue0%75%25%
Blue + Blue0%0%100%

Frequently Asked Questions On Baby’s Eye Colour

Yes, the eye colour of babies changes during the first couple of months after birth. The eye colour is lighter when a baby is born due to a deficit of melanin pigment. However, over time, when the iris in a baby's eyes starts producing melanin, the colour changes and becomes darker.
The chances of giving birth to a baby with blue eyes when the father and mother have brown eyes stand at 6% to 7%. This can happen when the parents of the child have recessive blue genes.
Since genetics play a giant role in the eye colour of a baby, the baby eye predictor only partially gives accurate results. Furthermore, there is no explanation as to why hazel eye colour and other brown tones exist. So, we advise not to entirely depend on the predictor.
The possibility of predicting the rare eye colours of a child using the baby eye colour predictor is low. This is because the genetic makeup of rare eye colours is more complicated and vague.
The accuracy of a baby eye colour predictor may be impacted by intricate genetic variations, genetic abnormalities that can lead to disorders like albinism, or genetic conditions like heterochromia.
Yes, indeed! If you notice the grandparents of the baby, you might get an idea about what type of recessive genes they have. Having said that, the likelihood that your baby will inherit your eye colour from your grandparents varies by only a small 2% to 5%.