Eye Fatigue logo - eye health and vision blog

Types of Color Blindness Explained: From Red-Green to Rare Conditions

Last updated: September 23, 2025

There are several types of color blindness, and each changes how people see the world. As a result, living with color blindness often means adapting to daily tasks in unique ways. From traffic lights to clothing choices, color vision differences shape everyday life. By learning about these types, you gain a clear view of how color vision works and how to better support those who experience it.

TL;DR – What to Know About Types of Color Blindness

  • First, there are several types of color blindness that change how people see reds, greens, blues, and yellows.
  • Next, the main groups include Deutan and Protan (red–green), Tritan (blue–yellow), and rare total-loss forms like monochromacy and achromatopsia.
  • Also, symptoms vary: colors can look muted, swapped, or equally bright, which affects everyday tasks and signals.
  • Moreover, testing confirms your type and helps you choose practical adaptations such as high contrast, labels, and patterns.
  • Finally, living with color blindness improves with simple design choices – avoid color-only cues, add text or icons, and use accessible palettes.

Bottom line: Understand the types of color blindness, then tailor designs and routines so that living with color blindness is clearer, safer, and easier every day.

Why Understanding Types of Color Blindness Matters

First, knowing the different types of color blindness helps you recognize how people actually see color. Moreover, it guides better choices at home, in school, and online. Consequently, you can design, label, and communicate in ways that work for more people.

Additionally, awareness leads to quicker testing and support. For instance, you can learn how screening works in our EnChroma Color Blind Test guide. Likewise, some people explore filters that enhance contrast; you can see EnChroma color blind glasses options here.

  • Inclusivity: Furthermore, understanding types prevents designs that rely on color alone.
  • Clarity: Similarly, labels, icons, and patterns reduce confusion for red-green and blue-yellow differences.
  • Confidence: Therefore, people can choose tools and strategies that match their specific type.
  • Safety: Finally, clear signals and high contrast improve navigation in everyday tasks.

Types of Color Blindness: A Breakdown

Color blindness is not a single condition but a spectrum of visual differences. Each type alters how the brain interprets signals from the eye’s cone cells. As a result, while living with color blindness, some people struggle mainly with red and green shades. Others, find blue and yellow hardest to tell apart. In rare cases, all color perception is lost. By reviewing the main types, you can better understand how each affects daily life and why awareness matters.

Type of Color BlindnessDescriptionPrevalenceCommon Colors Affected
Deutan (Red-Green)The most common form. Deutan makes it difficult to tell the difference between green and red tones. Learn more in our guide to red-green color blindness.5% of males, 0.4% of femalesGreen, red, and related shades
Protan (Red-Green)A more severe red-green deficiency. Reds may appear darker or brownish, and brightness perception can be reduced.1% of males, 0.1% of femalesRed, orange, some greens
Tritan (Blue-Yellow)A rare type where individuals struggle to distinguish between blue and yellow hues. See more about blue-green color blindness.Less than 0.01% of males and femalesBlue, yellow, some greens
Monochromacy (Total Color Blindness)An extremely rare condition where vision is limited to shades of gray due to non-functioning cone cells.~0.00003% of the populationAll colors (gray only)
Achromatopsia (Complete Color Blindness)A genetic condition where people see only in black, white, and gray. Often paired with light sensitivity.1 in 30,000 peopleAll colors (gray only)

Understanding the Variations

  • Deutan and Protan: These are the most common. Deutan is less severe, while Protan also reduces brightness.
  • Tritan: This rare type affects blue and yellow. It can complicate reading signs or maps that use these colors.
  • Monochromacy: This extremely rare type limits vision to grayscale, making daily life highly challenging.
  • Achromatopsia: This severe genetic condition removes all color perception and often causes light sensitivity.

Zenni Optical

Living with Color Blindness: Challenges and Adaptations

Living with color blindness means adapting to a world designed around color. As a result, tasks like shopping, driving, or even choosing clothing can feel more complex. However, many people with color vision deficiency develop smart strategies that make daily life easier. Let’s look at the common challenges first, and then see how people adapt.

Everyday Challenges for Those Living with Color Blindness

  • Dressing with Confidence: Because colors may look similar, putting together outfits often requires extra planning or help.
  • Reading Traffic Signals: Since red and green lights can be hard to distinguish, traffic signals are a frequent source of stress.
  • Selecting Fresh Produce: For example, spotting a ripe tomato or avocado becomes difficult without clear color cues.
  • Understanding Color-Coded Information: Many charts, maps, and apps rely on color. For someone with red-green or blue-yellow blindness, the message may not be clear.

How People with Color Blindness Adapt

Paint jars showing types of color blindness challenges and the reality of living with color blindness in daily life

Fortunately, individuals find creative ways to navigate these challenges. Moreover, technology and awareness make adaptation easier than ever.

  • Using Technology: Color detection apps and filters help identify shades in real time. Some even work through a smartphone camera.
  • Relying on Patterns and Shapes: Instead of focusing on color alone, people use patterns, textures, or brightness to tell items apart.
  • Seeking Assistance: As many people are living with color blindness, friends and family often provide feedback when matching clothes or choosing produce.
  • Accessible Design: Because awareness has grown, more businesses add high-contrast options, symbols, and inclusive color schemes.

Designing for Accessibility: A Step-by-Step Guide

Designing with types of color blindness in mind is essential for accessibility. In fact, small design changes can make a huge difference. Therefore, whether you create websites, apps, or printed materials, these steps will help you reach more people.

Step 1. Use High Contrast for Key Elements

High contrast makes text, buttons, and icons easier to see. As a result, users with color blindness can navigate content more confidently.

  • Tip: Pair dark text with light backgrounds, or vice versa, for clear readability.

Step 2. Avoid Using Color as the Only Indicator

Because red-green blindness is common, relying on color alone can exclude people. Instead, always pair colors with labels, icons, or patterns.

  • Tip: Use words like “Active” or symbols like checkmarks alongside color changes.

Step 3. Utilize Color Blindness Simulation Tools

Before publishing a design, test how it looks through a simulator. Consequently, you can spot problem areas and fix them quickly.

  • Tip: Tools like Coblis or Color Oracle let you preview designs as different types of color blindness would see them.

Step 4. Choose Color Combinations Carefully

Red and green are not the only difficult mix. Blue and yellow can also be confusing. Therefore, test your color palettes to ensure clear distinctions.

  • Tip: Try a color contrast checker such as WebAIM to measure accessibility.

Step 5. Offer Customization Options

Whenever possible, give users control over the interface. For example, a high-contrast toggle helps people adapt the design to their needs.

  • Tip: Add an “Accessibility” button so users can switch to color-blind-friendly modes.

Step 6. Test and Gather Feedback

Finally, involve real users with color blindness in testing. Their feedback will highlight what works and what still needs improvement.

  • Tip: Use accessibility forums or user testing platforms to reach people with different types of color blindness.

Color Blindness in the Workplace: Living With Color Blindness

Color blindness often shows up in subtle but important ways at work. For example, charts, warning signs, or software interfaces may rely too heavily on color. As a result, employees with color vision deficiency can face unnecessary obstacles. Fortunately, awareness and simple adjustments can make workplaces more inclusive.

Common Workplace Challenges

  • Reading Charts and Graphs: When red and green are used together, data may become unclear.
  • Recognizing Signals: Warning lights or labels that rely only on color can be difficult to interpret.
  • Using Digital Tools: Some software platforms are not optimized for people with color blindness.

Inclusive Solutions

  • Accessible Design: Pair colors with text, icons, or patterns so that information is always clear.
  • Assistive Tools: Encourage the use of apps, filters, or colorblind glasses when needed.
  • Workplace Awareness: Training and reminders help teams recognize that colleagues may see colors differently.

By making these changes, businesses not only support employees but also foster more inclusive and effective workplaces.

Frequently Asked Questions About Types of Color Blindness

People often have questions about the causes, effects, and impact of different types of color blindness. Below are clear answers to the most common ones.

What Causes Color Blindness?

Most cases are inherited through genes that affect cone cells in the retina. However, color blindness can also develop later in life due to eye disease, certain medications, or aging.

Can Color Blindness Be Cured?

No, there is no cure. Yet, tools like colorblind glasses, contact lenses, and color detection apps can improve daily experiences by enhancing contrast and clarity.

Is Color Blindness More Common in Men?

Yes. Because men have only one X chromosome, they are more likely to inherit the condition. Women, who have two X chromosomes, are less often affected. Learn more in our post Can Women Be Color Blind?.

Can Color Blindness Affect Career Choices?

Yes, certain fields require precise color recognition, such as aviation, electrical work, and graphic design. Nevertheless, many people succeed in these areas by using adaptive tools, high-contrast designs, or relying on brightness and patterns instead of color alone.

Key Takeaways on Types of Color Blindness

  • Color Blindness Has Many Types: From common red-green forms to rare conditions, each affects vision in different ways.
  • Awareness Builds Inclusivity: Recognizing these differences helps create more accessible designs and workplaces.
  • Tools and Adaptations Help: Glasses, apps, and high-contrast design make daily life easier for people with color blindness.
  • Small Changes Matter: Simple steps like pairing text with color or offering customization options improve accessibility for everyone.

Conclusion: Moving Toward Accessibility and Living With Color Blindness

Color blindness affects millions, but understanding the types makes it easier to support those who experience it. Moreover, by designing with accessibility in mind, you ensure that information and opportunities are open to all. As you apply these lessons, remember that every adjustment – no matter how small – can make the world more inclusive. So start today by thinking about how color plays a role in your work, your designs, and your daily life.

© 2026 Eye Fatigue – All Rights Reserved