HTML Entity for Lowercase U Horn (ư)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+01B0
HTML Entity for Lowercase U Horn tutorial illustration

What You'll Learn

How to display the lowercase u with horn (ư) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+01B0 in the Latin Extended-B block. It combines the letter u with a horn diacritic and is a distinct letter in the Vietnamese alphabet (e.g. tương, thư).

Render it with ư, ư, or CSS escape \01B0. There is no named HTML entity for this character. In UTF-8 documents you can also type ư directly.

⚡ Quick Reference — Lowercase U Horn Entity

Unicode U+01B0

Latin Extended-B

Hex Code ư

Hexadecimal reference

HTML Code ư

Decimal reference

Named Entity —

No named entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+01B0
Hex code       ư
HTML code      ư
Named entity   (none)
CSS code       \01B0
Meaning        Latin small letter u with horn
Related        U+01AF = Ư (uppercase)
Block          Latin Extended-B (U+0180–U+024F)
1

Complete HTML Example

A simple example showing the lowercase u horn (ư) using hexadecimal code, decimal HTML code, the character directly, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\01B0";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x01B0;</p>
<p>Symbol (decimal): &#432;</p>
<p>Symbol (direct): ư</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try It Yourself

🌐 Browser Support

The lowercase u horn (ư) is supported in all modern browsers as part of Latin Extended-B:

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

👀 Live Preview

See the lowercase u horn (ư) in language and content contexts:

Large glyphư
Vietnamesetương, thư, ưỚc, tưởng
Unicode nameLatin small letter u with horn
UppercaseƯ (U+01AF) — LATIN CAPITAL LETTER U WITH HORN
Not the same asplain u (U+0075)  |  Ʊ (o with horn)  |  ü (&uuml;)
Numeric refs&#x01B0; &#432; \01B0

🧠 How It Works

1

Hexadecimal Code

&#x01B0; uses the Unicode hexadecimal value 01B0 to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#432; uses the decimal Unicode value 432 to display the same character. A common method when a numeric reference is needed.

HTML markup
3

Direct Character

Type ư directly in HTML when your document uses UTF-8 encoding. There is no named entity for this precomposed letter.

HTML markup
4

CSS Entity

\01B0 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All methods produce the glyph: ư. Unicode U+01B0 sits in Latin Extended-B. Uppercase equivalent: U+01AF (Ư). Do not confuse with plain u or Ʊ (o with horn).

✅

Use Cases

The lowercase u horn (ư) is commonly used in:

🇻🇳 Vietnamese

Essential letter in Vietnamese orthography (tương, thư, ưỚc) for websites, news, and localized UI.

🌐 Internationalization

Multilingual websites, CMS content, and email templates requiring correct Vietnamese characters.

📚 Language Learning

Vietnamese courses, dictionaries, and grammar resources teaching the horn diacritic on u.

📝 Linguistics & Phonology

Phonetic transcription and linguistic descriptions using u with horn marking.

📄 Academic Content

Papers, character charts, and language resources requiring precise precomposed character representation.

♿ Accessibility

Using the correct character (U+01B0) with lang="vi" helps assistive technologies interpret Vietnamese correctly.

⚙ Programmatic HTML

When building HTML from Vietnamese data, using &#432; or &#x01B0; guarantees correct output.

💡 Best Practices

Do

  • Serve pages as UTF-8; you can type ư directly in UTF-8 source
  • Use numeric references (&#x01B0; or &#432;) when escaping is required
  • Use \01B0 in CSS content when generating the symbol via pseudo-elements
  • Use fonts that support Latin Extended-B characters (U+0180–U+024F)
  • Distinguish ư from plain u and Ʊ (o with horn)

Don’t

  • Confuse ư with plain u or Ʊ (o with horn) when the Vietnamese letter is required
  • Expect a named HTML entity—none exists for ư
  • Use the old incorrect CSS escape \001B0—the correct value is \01B0
  • Put CSS escape \01B0 in HTML text nodes
  • Double-encode numeric references in dynamically generated HTML

Key Takeaways

1

Type ư directly, or use hex/decimal references

&#x01B0; &#432;
2

For CSS stylesheets, use the escape in the content property

\01B0
3

Unicode U+01B0 — LATIN SMALL LETTER U WITH HORN

4

Vietnamese letter (tương, thư); uppercase is Ư (U+01AF)

5

Previous: Lowercase U Grave (ù)   Next: Lowercase U Inverted Breve

❓ Frequently Asked Questions

Use &#x01B0; (hex), &#432; (decimal), or \01B0 in CSS content. There is no named HTML entity for ư. In UTF-8 you can also type ư directly.
U+01B0 (LATIN SMALL LETTER U WITH HORN). Latin Extended-B block. Hex 01B0, decimal 432. Used in Vietnamese (e.g. tương, thư). Uppercase form is U+01AF (Ư).
When displaying Vietnamese text, linguistic notation, transliteration systems, dictionaries, or any content requiring the distinct letter u with horn.
No. There is no named HTML entity for ư. Use numeric codes &#432; or &#x01B0;, or the CSS entity \01B0. Do not confuse with plain u (U+0075) or Ʊ (o with horn).
HTML code (&#432; or &#x01B0;) is used in HTML content; CSS entity \01B0 is used in stylesheets in the content property of pseudo-elements. Both produce ư.

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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.

AWS Certified Developer – Associate (Credly)

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