HTML Entity for Uppercase B Latin (ʙ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+0299

What You'll Learn

How to display the small capital B (ʙ) in HTML using hexadecimal, decimal, and CSS escape methods. This IPA character represents a small capital B used in phonetic notation and linguistic text. It is U+0299 in the IPA Extensions block (official name: LATIN LETTER SMALL CAPITAL B).

Render it with ʙ, ʙ, or CSS escape \0299. There is no named HTML entity for this character, so numeric codes or CSS must be used.

⚡ Quick Reference — Uppercase B Latin Entity

Unicode U+0299

IPA Extensions

Hex Code ʙ

Hexadecimal reference

HTML Code ʙ

Decimal reference

Named Entity

No named entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+0299
Hex code       ʙ
HTML code      ʙ
Named entity   (none)
CSS code       \0299
Meaning        Latin letter small capital B
Related        U+0042 = B (full capital)
Block          IPA Extensions (U+0250–U+02AF)
1

Complete HTML Example

A simple example showing the small capital B (ʙ) using hexadecimal code, decimal HTML code, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\0299";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x0299;</p>
<p>Symbol (decimal): &#665;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The small capital B (ʙ) renders correctly in modern browsers when UTF-8 is used:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See the small capital B (ʙ) and how it differs from related characters:

Large glyphʙ
Character typeSmall capital B (IPA / phonetic notation)
Compare sizesB ʙ b
Not the same asB (U+0042) or Ɓ (B with hook)
Numeric refs&#x0299; &#665; \0299

🧠 How It Works

1

Hexadecimal Code

&#x0299; uses the Unicode hexadecimal value 0299 to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#665; uses the decimal Unicode value 665 to display the same character. A common method for IPA Extensions characters.

HTML markup
3

CSS Entity

\0299 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All three methods produce the glyph: ʙ. Unicode U+0299 sits in IPA Extensions. Do not confuse ʙ with full capital B (U+0042). There is no named HTML entity.

Use Cases

The small capital B (ʙ) is commonly used in:

🔤 Phonetic notation

IPA transcriptions and phonetic analysis requiring small capital letters.

📚 Linguistics

Language research, dictionary entries, and scholarly texts with IPA symbols.

🌐 Language learning

Pronunciation guides and educational content about phonetics and speech sounds.

📄 Academic

Research papers and publications in phonology, sociolinguistics, and related fields.

🎨 Typography

Specialized fonts and CSS-generated content for phonetic symbol display.

🔍 Search & SEO

Correct encoding so phonetic content is indexed and displayed consistently.

📧 Forms & Input

User input that may contain ʙ; use UTF-8 encoding and numeric entities as needed.

💡 Best Practices

Do

  • Use &#665; or &#x0299; in HTML (no named entity exists)
  • Serve pages as UTF-8; you can also type ʙ directly in UTF-8 source
  • Pick one style (hex or decimal) per project for consistency
  • Use fonts that support IPA Extensions (U+0250–U+02AF)
  • Distinguish ʙ from full capital B (U+0042) in phonetic contexts

Don’t

  • Assume a named entity exists—there is none for ʙ
  • Substitute plain B when ʙ is required for IPA accuracy
  • Put CSS escape \0299 in HTML text nodes
  • Assume all fonts render IPA Extensions glyphs identically
  • Mix entity styles randomly in one file

Key Takeaways

1

Three references render ʙ (no named entity)

&#x0299; &#665;
2

For CSS stylesheets, use the escape in the content property

\0299
3

Unicode U+0299 — LATIN LETTER SMALL CAPITAL B

4

Used in IPA transcriptions, phonetic notation, and linguistic text

❓ Frequently Asked Questions

Use &#x0299; (hex), &#665; (decimal), or \0299 in CSS content. There is no named HTML entity; use numeric codes or CSS.
U+0299 (LATIN LETTER SMALL CAPITAL B). IPA Extensions block. Hex 0299, decimal 665. Used as a small capital B in phonetic notation and IPA.
In phonetic notation, linguistic text, IPA transcriptions, pronunciation guides, and any content requiring the small capital B symbol.
HTML code (&#665; or &#x0299;) is used in HTML content. The CSS entity (\0299) is used in CSS, e.g. in the content property of pseudo-elements. Both produce ʙ but in different contexts.
Named HTML entities are mainly for ASCII, Latin-1, and common symbols. IPA and phonetic characters like ʙ use numeric codes because they belong to specialized Unicode blocks. This is standard for IPA Extensions characters.

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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
  • Focus Full Stack Development, AWS, and Developer Education

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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