HTML Entity for Lowercase O Diaeresis (ö)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+00F6

What You'll Learn

How to display the lowercase o with diaeresis (ö) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+00F6 in the Latin Extended-B block. It is the letter o with a dot diacritic above it, used in German, Swedish, Finnish, Hungarian and in linguistic or phonetic notation.

Render it with ö, ö, or CSS escape \00F6. There is no named HTML entity for this character. In UTF-8 documents you can also type ö directly.

⚡ Quick Reference — Lowercase O Diaeresis Entity

Unicode U+00F6

Latin Extended-B

Hex Code ö

Hexadecimal reference

HTML Code ö

Decimal reference

Named Entity

No named entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+00F6
Hex code       ö
HTML code      ö
Named entity   (none)
CSS code       \00F6
Meaning        Latin small letter o with diaeresis
Related        U+022E = Ȯ (uppercase)
Block          Latin Extended-B (U+0180–U+024F)
1

Complete HTML Example

A simple example showing the lowercase o diaeresis (ö) using hexadecimal code, decimal HTML code, the character directly, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\00F6";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x00F6;</p>
<p>Symbol (decimal): &#246;</p>
<p>Symbol (direct): ö</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try It Yourself

🌐 Browser Support

The lowercase o diaeresis (ö) 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 o diaeresis (ö) in linguistic contexts:

Large glyphö
Unicode nameLatin small letter o with diaeresis
UsageGerman, Swedish, Finnish, Hungarian orthography, linguistics, phonetic notation
UppercaseȮ (U+022E) — LATIN CAPITAL LETTER O WITH DOT ABOVE
Not the same asọ (dot below)  |  ȱ (dot + macron)  |  o (plain)
Numeric refs&#x00F6; &#246; \00F6

🧠 How It Works

1

Hexadecimal Code

&#x00F6; uses the Unicode hexadecimal value 00F6 to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#246; uses the decimal Unicode value 246 to display the same character. A common method when a numeric reference is needed.

HTML markup
3

Direct Character

Type ö directly in HTML when your document uses UTF-8 encoding. There is no named entity for this German, Swedish, Finnish, Hungarian and linguistic symbol.

HTML markup
4

CSS Entity

\00F6 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: ö. Unicode U+00F6 sits in Latin Extended-B. Uppercase equivalent: U+022E (Ȯ). Do not confuse with ọ (o with dot below) or ȱ (dot above + macron).

Use Cases

The lowercase o diaeresis (ö) is commonly used in:

🇱🇻 German, Swedish, Finnish, Hungarian

Display correct spelling in German, Swedish, Finnish, Hungarian (a Finnic language), where ö is part of the orthography.

📝 Linguistics

Phonetic or phonological notation, language documentation, and academic papers requiring this character.

📚 Dictionaries

Headwords, pronunciation guides, or transliteration that include the o with diaeresis.

🌐 Language Learning

Lessons and resources for German, Swedish, Finnish, Hungarian or other languages that use this character.

📐 Extended Latin

Orthographies or writing systems that require o with a dot above diacritic.

♿ Accessibility

Using the correct character (U+00F6) ensures assistive technologies interpret linguistic content correctly.

🎨 CSS Generated Content

Using \00F6 in the CSS content property to insert ö via pseudo-elements.

💡 Best Practices

Do

  • Serve pages as UTF-8; you can type ö directly in UTF-8 source
  • Use numeric references (&#x00F6; or &#246;) when escaping is required
  • Use \00F6 in CSS content when generating the symbol via pseudo-elements
  • Use fonts that support Latin Extended-B characters (U+0180–U+024F)
  • Distinguish ö (dot above) from ọ (dot below)

Don’t

  • Expect a named HTML entity—none exists for ö
  • Confuse ö (dot above) with ọ (dot below), ȱ (dot + macron), or plain o
  • Combine separate diacritics when the precomposed ö is required
  • Put CSS escape \00F6 in HTML text nodes
  • Double-encode numeric references in dynamically generated HTML

Key Takeaways

1

Type ö directly, or use hex/decimal references

&#x00F6; &#246;
2

For CSS stylesheets, use the escape in the content property

\00F6
3

Unicode U+00F6 — LATIN SMALL LETTER O WITH DIAERESIS

4

German, Swedish, Finnish, Hungarian and linguistics; uppercase is Ȯ (U+022E)

❓ Frequently Asked Questions

Use &#x00F6; (hex), &#246; (decimal), or \00F6 in CSS content. There is no named HTML entity for ö. In UTF-8 you can also type ö directly.
U+00F6 (LATIN SMALL LETTER O WITH DIAERESIS). Latin Extended-B block. Hex 00F6, decimal 246. Used in German, Swedish, Finnish, Hungarian and linguistic notation. Uppercase form is U+022E (Ȯ).
When displaying German, Swedish, Finnish, Hungarian language text, linguistics content, phonetic notation, language documentation, or any content that requires o with a dot above.
No. There is no named HTML entity for ö. Use numeric codes &#246; or &#x00F6;, or the CSS entity \00F6. In UTF-8 pages you can type ö directly.
ö (U+00F6) has a dot above the letter and is used in German, Swedish, Finnish, Hungarian and linguistics. ọ (U+1ECD) has a dot below and is used in Igbo, Yoruba, and other languages. They are different characters with different uses.

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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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