Red 400 on White - WCAG Contrast Check

The quick brown fox jumps over the lazy dog

Contrast Ratio

2.77

to 1

AA NormalFAIL

AAA NormalFAIL

AA LargeFAIL

AAA LargeFAIL

Color Details

Text Color

Red 400

#f87171text-red-400

Background Color

White

#ffffffbg-white

WCAG Compliance

Criterion	Min Ratio	Result
Normal Text AA	4.5:1	FAIL
Normal Text AAA	7:1	FAIL
Large Text AA	3:1	FAIL
Large Text AAA	4.5:1	FAIL

Code Examples

Tailwind CSShtml

<!-- Text color: text-red-400 -->
<!-- Background: bg-white -->
<div class="bg-white p-6 rounded-lg">
  <p class="text-red-400">
    Your accessible text here
  </p>
</div>

Plain CSScss

/* Text: #f87171 on Background: #ffffff */
.accessible-container {
  background-color: #ffffff;
  color: #f87171;
  padding: 1.5rem;
  border-radius: 0.5rem;
}

Use Cases

Decorative text only (not for body copy)
Large display headings (36px+) if AA Large passes
Placeholder or watermark text

Accessible Alternatives

text-red-6004.83:1

bg-white

text-red-7006.47:1

bg-white

text-black21.00:1

bg-white

Frequently Asked Questions

Is red 400 text on white accessible?▼

No, this combination fails WCAG AA with a contrast ratio of only 2.77:1, below the 4.5:1 minimum for normal text.

What is the contrast ratio of red 400 on white?▼

The contrast ratio is 2.77:1. WCAG AA requires at least 4.5:1 for normal text and 3:1 for large text. WCAG AAA requires 7:1 for normal text and 4.5:1 for large text.

How can I make red 400 on white accessible?▼

To achieve WCAG AA compliance, try using a darker text shade or a lighter background shade. For example, increasing the contrast by using a darker shade of red or adjusting the background.