Color Blindness Inheritance Calculator

Fill in the details of parent’s and grandparents vision status in below calculator and find out what are the chances of your child inheriting color blindness.

Child’s Color Blindness Probability Predictor

Select Color Blindness Status for Parents and Grandparents (if known)

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What Is Color Blindness

Color blindness, or color vision deficiency (CVD), is a condition where individuals have difficulty distinguishing certain colors. This condition affects approximately 1 in 12 men (8%) and 1 in 200 women globally.

Color blindness is primarily genetic, often inherited from the mother through the X chromosome.

However, some cases may arise from other conditions such as diabetes, multiple sclerosis, aging, or as side effects of certain medications.

These factors can lead to variations in the severity and type of color blindness experienced by an individual.

Key Genetic Concepts:

  • X-Linked Recessive Inheritance: Since the genes for color vision are located on the X chromosome, this condition is predominantly inherited in an X-linked recessive pattern. Males are more frequently affected due to having only one X chromosome, while females must inherit the faulty gene from both parents to be significantly affected.
  • Prevalence and Impact: Approximately 300 million people worldwide are estimated to have some form of color blindness, comparable to the population of the USA.

How Our Color Blindness Inheritance Calculator Works

Input Genetic Information:

  • Mother’s Carrier Status: Indicates if the mother is affected or not. Plus input the status of mother’s parents.
  • Father’s Color Blindness Status: States if the father is color blind.

Calculating Inheritance Probabilities:

  • The calculator assesses the genotype of mother from the grandparents status and then calculate the chances of a child inheriting color blindness, factoring in both parental contributions.

Types and Effects of Color Blindness

Color blindness varies significantly in type and severity. The most common form is red-green color blindness, which includes different severities and types.

Contrary to popular myths, color blind individuals do not solely confuse red with green; they might struggle with a broad spectrum of colors:

  • Red/Green Color Blindness: Individuals may confuse colors that contain red or green elements, such as blue and purple, because they cannot perceive the red component of purple.
  • Problems Across the Spectrum: Issues can extend to perceptions of reds, greens, oranges, browns, purples, pinks, and even greys. Black may be confused with dark red, green, or blue.

Understanding Through Simulation

The best way to comprehend the impact of color blindness is through simulations that compare ‘normal’ vision to how color blind people perceive the world. This helps illustrate the challenges faced in daily activities and the reliance on coping strategies.

Medical and Educational Importance

Knowing about color blindness can help in adapting educational materials and preparing for careers where color discrimination is crucial. Early recognition can enhance learning experiences and career guidance.

Daily Challenges and Misconceptions

Many color blind individuals rely on coping strategies and may not realize the extent of their condition. Common revelations, like the real color of peanut butter, highlight everyday challenges and misconceptions about color perception.

The Role of Our Calculator

This calculator serves as an educational tool, increasing awareness about the inheritance and implications of color blindness. It aids families in understanding potential genetic risks and preparing for practical life adjustments.

Disclaimer: This tool provides estimates based on typical inheritance patterns and is not a substitute for professional diagnosis. For a definitive assessment, consult with healthcare professionals.


Can females be color blind?

Yes, though less commonly than males. Females need to inherit the faulty gene from both parents to be significantly affected.

How accurate are inheritance predictions?

These predictions are generally reliable for X-linked conditions, though individual variations can occur.

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