Color Blindness Blog

Expert insights, research-backed articles, and practical resources about color vision deficiency.

Probability that at least one person in a group is color blind

What "1 in 12" Actually Means for You

Color Blindness Statistics

In a team of 30 there is a 72.8% chance someone is color blind, and 91.8% if the team is all men. Prevalence figures turned into numbers that change decisions.

August 9, 20268 min read

All Articles

38 articles

Tailwind color pairs measured for color blindness

Your Tailwind Palette Has 69 Confusable Pairs

We measured all 136 pairs of Tailwind 500-weight colors against every vision type. 69 fail and four are identical. Which ones, and the config to use instead.

August 9, 20268 min readRead

A five color chart palette verified for color blindness

A Chart Palette That Survives Color Blindness

Five colors, every pair verified under all eight vision types, with the exact hex codes and the clicks to apply them in each tool.

August 9, 20267 min readRead

Protanopia darkens red: the same red seen three ways

Protanopia, Explained

Red-blind color vision loses brightness as well as hue: a strong red drops to nearly half its luminance. What that breaks that a red-green checklist never catches.

August 9, 20268 min readRead

Eight interface colors collapsing to four distinguishable grays

Achromatopsia, Explained

Total color blindness is rare and involves far more than missing color. Why an eight-color palette becomes four grays, and why it is the strictest test of any design.

August 9, 20268 min readRead

What colors do color blind people see: simulated swatches

What Colors Do Color Blind People See?

Red looks olive, green looks tan, pink turns gray. Every common color simulated with the models used in vision research, with the actual values.

August 8, 20269 min readRead

Deuteranopia explained: green blind color vision

Deuteranopia, Explained

Green-blind color vision: what causes it, how it differs from deuteranomaly, and three real interface color pairs measured under it.

August 8, 20268 min readRead

Showing 7 of 38 articles

Color Blind Friendly PowerPoint

How to make presentations accessible for color blind viewers. Safe palettes, chart patterns, contrast tips, and PowerPoint accessibility checker.

How to Design for Tritanopia

Tritanopia affects blue-yellow perception. Which colors to avoid, safe palettes, UI patterns, and how to test designs for tritanopic users.

Color Blind vs Color Deficient

Is it "color blind" or "color deficient"? The medical, social, and practical differences between these terms and what to use in your content.

Color Blind Gaming Guide

Best color blind settings for Fortnite, Apex, CoD, and more. System filters, game-specific guides, and real tips from color blind gamers.

ADA Color Blindness Requirements

Does the ADA cover color blindness? Legal requirements for websites, employers, and digital products. WCAG standards and how to stay compliant.

Are Color Blind Glasses Worth It?

Do color blind glasses actually work? Science, real user results, costs ($189-$500+), and who benefits most from EnChroma, Pilestone, and alternatives.

WCAG 2.2 Color Contrast Requirements

The exact contrast ratios for AA and AAA, what changed from WCAG 2.1, non-text contrast rules, and how to test your designs.

Can Color Blindness Be Cured?

Gene therapy has restored color vision in monkeys. Human trials are underway for achromatopsia. Here is where the science stands in 2026.

Color Blind Test for Jobs

Color vision requirements for pilots, military, police, firefighters, and electricians. Which tests are used and what happens if you fail.

Is Color Blindness Genetic?

How color blindness passes from parents to children, why men are 20× more likely to have it, and non-genetic causes.

How to Design for Color Blind Users

Which color combos to avoid, 6 rules for accessible design, and how to test your work before shipping.

How to Simulate Color Blindness in Figma

Test your Figma designs for color blindness using plugins, desktop overlays, and web simulators. Step-by-step guide with tool recommendations.

Color Blind Glasses: Do They Work?

EnChroma, Pilestone, VINO: I tested glasses from 5 brands. Some surprised me. Most didn't. Here's what actually works.

Types of Color Blindness Explained

Protanopia, deuteranopia, tritanopia, and more. See how each type changes what you see, who gets it, and why it matters for design.

Best Coblis Alternatives in 2026

Coblis has been the go-to simulator for a decade, but modern tools offer webcam support, better accuracy, and faster workflows. We tested 6 alternatives head-to-head.

Color Blind Accessibility Tools

A comprehensive guide to color blind accessibility tools for designers and developers. Discover simulators, contrast checkers, and palette generators.

Color Blindness Simulation Accuracy

Learn how color blindness simulation accuracy is measured and what makes some simulators more reliable than others.

Test Website Accessibility for Color Blind Users

Step-by-step guide on how to test website accessibility for color blind visitors. Covers tools, techniques, and best practices.

WCAG Color Contrast Examples

See real WCAG color contrast examples with pass and fail demonstrations. Learn what 4.5:1 and 3:1 ratios actually look like.

Accessible UI Design for Color Blindness

Learn accessible UI design for color blindness with proven patterns and techniques. Create interfaces everyone can use.

Color Blindness Friendly Chart Colors

Discover color blindness friendly chart colors for data visualization. Learn which palettes work across all CVD types.

How to Simulate Color Blindness in Design

Learn how to simulate color blindness in design with this step-by-step workflow guide. From Figma plugins to web tools.

Assistive Technology for Color Blind People

Explore assistive technology for color blind people including smartphone apps, browser extensions, and wearable devices.

Differences Between Color Blindness Tests Explained

Understand the differences between color blindness tests including Ishihara, Farnsworth D-15, and anomaloscope.

How Color Blindness Affects Learning and Education

Understand how color blindness affects learning and education. Discover challenges students face and strategies educators can use.

Color Blind Friendly Palette

Learn how to create a color blind friendly palette for inclusive design. Discover tools, tips, and examples for accessible color combinations.

Best Color Blindness Simulation Tools for Designers 2026

We tested dozens of color blindness simulators so you don't have to. Here are the five best tools for designers who want to create accessible work.

How to Pass the Ishihara Color Vision Test: Myths and Facts

Learn how to pass the Ishihara color vision test. Discover common myths, ethical considerations, and what really works for color vision deficiency testing.

Color Blindness in Children

A comprehensive guide to understanding, detecting, and supporting children with color vision deficiency.

Color Blindness and Driving

Essential guidance for drivers with color vision deficiency and modern adaptive technologies.

Best Apps for Color Blind People

Discover the top mobile apps and digital tools designed to help people with color vision deficiency.

Test Your Color Vision Today

Understanding your color vision is the first step to getting the right support and tools.

Adult Color Vision Test Kids Color Vision Test