Color Accessibility Guidelines

阅读时间 8 分钟更新于 2026-06-10
📘 本文内容为英文原文,提供最准确的技术信息。中文解读和实操指南正在完善中。你也可以使用页面顶部的翻译工具。

1 in 12 men and 1 in 200 women have some form of color blindness. If your website gets 10,000 visitors a month, roughly 400 of them literally cannot see your design the way you intended — unless you design for them.

Accessibility isn't charity work. It's engineering. And in many jurisdictions (EU, Canada, US government contracts), it's also the law. The Web Content Accessibility Guidelines (WCAG) define clear, measurable standards. This guide shows you exactly how to meet them without making your site ugly.

why it matters

Domino's Pizza lost a Supreme Court case over website accessibility — a blind customer couldn't order pizza online. The court ruled that the ADA applies to websites. Settlement cost: undisclosed, but Domino's had to rebuild their entire web ordering system.

Target paid $6 million in a class-action settlement over an inaccessible website in 2008. They also had to pay $3.7 million in plaintiff legal fees.

Government websites in the EU must meet WCAG 2.1 AA standards by law (EN 301 549). Private sector websites are increasingly being held to the same standard under the European Accessibility Act.

WCAG标准解读

Domino's Pizza lost a Supreme Court case over website accessibility — a blind customer couldn't order pizza online. The court ruled that the ADA applies to websites. Settlement cost: undisclosed, but Domino's had to rebuild their entire web ordering system.

Target paid $6 million in a class-action settlement over an inaccessible website in 2008. They also had to pay $3.7 million in plaintiff legal fees.

Government websites in the EU must meet WCAG 2.1 AA standards by law (EN 301 549). Private sector websites are increasingly being held to the same standard under the European Accessibility Act.

测试方法

Domino's Pizza lost a Supreme Court case over website accessibility — a blind customer couldn't order pizza online. The court ruled that the ADA applies to websites. Settlement cost: undisclosed, but Domino's had to rebuild their entire web ordering system.

Target paid $6 million in a class-action settlement over an inaccessible website in 2008. They also had to pay $3.7 million in plaintiff legal fees.

Government websites in the EU must meet WCAG 2.1 AA standards by law (EN 301 549). Private sector websites are increasingly being held to the same standard under the European Accessibility Act.

fixing issues

Domino's Pizza lost a Supreme Court case over website accessibility — a blind customer couldn't order pizza online. The court ruled that the ADA applies to websites. Settlement cost: undisclosed, but Domino's had to rebuild their entire web ordering system.

Target paid $6 million in a class-action settlement over an inaccessible website in 2008. They also had to pay $3.7 million in plaintiff legal fees.

Government websites in the EU must meet WCAG 2.1 AA standards by law (EN 301 549). Private sector websites are increasingly being held to the same standard under the European Accessibility Act.

工具推荐

Domino's Pizza lost a Supreme Court case over website accessibility — a blind customer couldn't order pizza online. The court ruled that the ADA applies to websites. Settlement cost: undisclosed, but Domino's had to rebuild their entire web ordering system.

Target paid $6 million in a class-action settlement over an inaccessible website in 2008. They also had to pay $3.7 million in plaintiff legal fees.

Government websites in the EU must meet WCAG 2.1 AA standards by law (EN 301 549). Private sector websites are increasingly being held to the same standard under the European Accessibility Act.

免费工具推荐

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