HTML Entity for Uppercase B Lower Stroke (Ƀ)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+0243
HTML Entity for Uppercase B Lower Stroke (U+0243) tutorial illustration
Definition

What Is the Uppercase B Lower Stroke Entity?

Uppercase B Lower Stroke (Ƀ) is the Unicode character at U+0243 (LATIN CAPITAL LETTER B WITH STROKE) in Latin Extended-B. It is a capital B with a horizontal stroke, used in extended Latin orthography and linguistic text.

Remember
Character     Ƀ
Unicode       U+0243
Hex entity    Ƀ
Decimal       Ƀ
CSS escape    \0243
Named entity  (none)
Official name LATIN CAPITAL LETTER B WITH STROKE
Lowercase     U+0180 (ƀ)

All of these produce the same glyph: Ƀ. Compare with Uppercase B (U+0042) and Uppercase B Latin (U+0299).

Reference

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Direct characterɃHTML text (UTF-8)
Hex entityɃHTML markup
Decimal entityɃHTML markup
CSS escape\0243Stylesheet content
Named entity—Not defined in HTML5

When to Use Which

SituationUse
Need capital B with strokeType the character, or Ƀ / Ƀ
Generated text via ::before / ::aftercontent: "\0243"
Lowercase B with strokeUse ƀ / ƀ (U+0180)
Ordinary capital letter BUse B (U+0042)
Looking for a named entityNone for U+0243 — use numeric form
See it

Live Preview

Capital B with stroke in common comparison contexts.

Large glyph Ƀ
Case pair Ƀ / ƀ
Compared B Ƀ ʙ
In sentence Letter: Ƀ (B with stroke)
With entities Hex: Ƀ | Decimal: Ƀ
Code

Complete HTML Example

One page that shows this character with hex, decimal, CSS, and its lowercase pair. Use View Output or open the live editor.

Hex + Decimal + CSS + Case Pair

All ways to produce Ƀ in a single document, plus the lowercase pair ƀ.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Uppercase B Lower Stroke</title>
  <style>
    #point::after {
      content: "\0243";
    }
  </style>
</head>
<body>
  <p>Using Hex Code: &#x0243;</p>
  <p>Using HTML Code: &#579;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: &#x0243;</p>
  <p>Case pair: &#x0243; / &#x0180;</p>
</body>
</html>
Try It Yourself

How It Works

1. Hex: U+0243 → &#x0243; in HTML. The browser turns it into the glyph.

2. Decimal: same code point as 579 → &#579;. Same result as hex.

3. CSS: use \0243 in content (not an HTML entity). #point::after appends that glyph after the paragraph text.

4. Case pair: uppercase is U+0243; lowercase is U+0180 (&#x0180;).

Pitfalls & Tips

Common mistakes when working with this character.

Named?

No named entity

HTML5 does not define a named entity for U+0243. Use numeric forms.

Look-alikes

Not plain B or small capital B

U+0243 has a stroke. U+0042 is ordinary B. U+0299 is IPA small capital B. Do not swap them.

Case

Use the correct case pair

Lowercase of U+0243 is U+0180 (ƀ), not a styled lowercase b.

CSS vs HTML

Do not mix escapes

\0243 belongs in CSS. &#x0243; / &#579; belong in HTML.

Fonts

Check Latin Extended-B coverage

Some fonts omit U+0243. Prefer fonts that cover Latin Extended-B for reliable glyphs.

Semicolon

End references

Always finish with ; — write &#579;, not &#579.

Compatibility

Browser Support

Uppercase B Lower Stroke / LATIN CAPITAL LETTER B WITH STROKE (U+0243) and its numeric entity forms (&#x0243;, &#579;, CSS \\0243) are supported in all mainstream browsers. Glyph shape depends on Latin Extended-B font coverage.

✓ Universal support

Uppercase B Lower Stroke

Encode with hex, decimal, or CSS escape — or paste the character in UTF-8 HTML.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer All versions
Yes
U+0243 / entities Full support

Bottom line: Use &#x0243; or &#579; for the Unicode glyph, and \\0243 only inside CSS content. Prefer fonts with Latin Extended-B support.

Remember

Key Takeaways

  • Unicode: this character is U+0243 (decimal 579) — LATIN CAPITAL LETTER B WITH STROKE.
  • HTML: use &#x0243; or &#579; when you need an entity.
  • CSS: use \0243 inside content for generated text.
  • Watch out: lowercase pair is U+0180 (ƀ); U+0243 ≠ U+0042 ≠ U+0299.

One line: U+0243 → &#x0243; / &#579; / CSS \0243.

Frequently Asked Questions

Use &#x0243; (hex), &#579; (decimal), or the CSS escape \0243 in the content property. All render U+0243. You can also paste the character directly when your file is UTF-8.
U+0243 (hex 0243, decimal 579). Unicode names it LATIN CAPITAL LETTER B WITH STROKE. It belongs to Latin Extended-B (U+0180–U+024F).
No. HTML5 does not define a named entity for this character. Use numeric references like &#x0243; or &#579;.
U+0243 is capital B with a stroke through it. U+0042 is ordinary capital B. U+0299 is LATIN LETTER SMALL CAPITAL B (IPA). They are different characters.
The case pair is U+0180 (LATIN SMALL LETTER B WITH STROKE, ƀ). Use &#x0180; or &#384; for the lowercase form.
HTML entities (&#579; or &#x0243;) go in markup. The CSS escape \0243 is used in stylesheets (usually in the content property of ::before/::after). Both render the same glyph.

Did you know?

This character is Unicode U+0243 (decimal 579) — official name LATIN CAPITAL LETTER B WITH STROKE in Latin Extended-B. HTML5 has no named entity. Its lowercase pair is U+0180 (ƀ).

Next: Uppercase B Script Capital

Learn the HTML entity for Uppercase B Script Capital — next in this sequence.

Continue tutorial →

About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
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I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

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