HTML Entity for Uppercase O Diaeresis Macron (Ȫ)
What You'll Learn
How to display the uppercase O with diaeresis and macron (Ȫ) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+022A in the Latin Extended-B block. It combines the letter O with a diaeresis (two dots) and a macron (long mark), used in linguistics, transliteration, and extended Latin writing systems.
Render it with Ȫ, Ȫ, or CSS escape \022A. There is no named HTML entity for this character. In UTF-8 documents you can also type Ȫ directly.
⚡ Quick Reference — Uppercase O Diaeresis Macron Entity
U+022ALatin Extended-B
ȪHexadecimal reference
ȪDecimal reference
—No named entity
Name Value
──────────── ──────────
Unicode U+022A
Hex code Ȫ
HTML code Ȫ
Named entity (none)
CSS code \022A
Meaning Latin capital letter O with diaeresis and macron
Related U+022B = ȫ (lowercase)
Block Latin Extended-B (U+0180–U+024F)Complete HTML Example
A simple example showing the uppercase O diaeresis macron (Ȫ) using hexadecimal code, decimal HTML code, the character directly, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\022A";
}
</style>
</head>
<body>
<p>Symbol (hex): Ȫ</p>
<p>Symbol (decimal): Ȫ</p>
<p>Symbol (direct): Ȫ</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>🌐 Browser Support
The uppercase O diaeresis macron (Ȫ) is supported in all modern browsers as part of Latin Extended-B:
👀 Live Preview
See the uppercase O diaeresis macron (Ȫ) in linguistic contexts:
🧠 How It Works
Hexadecimal Code
Ȫ uses the Unicode hexadecimal value 022A to display the character. The x prefix indicates hexadecimal format.
Decimal HTML Code
Ȫ uses the decimal Unicode value 554 to display the same character. A common method when a numeric reference is needed.
Direct Character
Type Ȫ directly in HTML when your document uses UTF-8 encoding. There is no named entity for this combined diacritic symbol.
CSS Entity
\022A is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All methods produce the glyph: Ȫ. Unicode U+022A sits in Latin Extended-B. Lowercase equivalent: U+022B (ȫ). Do not confuse with Ö (diaeresis only), Ō (macron only), or Ȭ (tilde + macron).
Use Cases
The uppercase O diaeresis macron (Ȫ) is commonly used in:
Represent specific vowel qualities or lengths in phonetic transcription and language documentation at sentence start or in capitalized terms.
Romanization schemes that require O with both diaeresis and macron for accurate representation.
Orthographies or writing systems that use this combined diacritic on the capital letter O.
Papers, dictionaries, and language resources requiring precise character representation with multiple diacritics.
Font specimens and demos showcasing Latin Extended-B combined diacritic support on uppercase letters.
Using the correct character (U+022A) ensures assistive technologies interpret linguistic content correctly.
When building HTML from linguistic data, using Ȫ or Ȫ guarantees correct output.
💡 Best Practices
Do
- Serve pages as UTF-8; you can type Ȫ directly in UTF-8 source
- Use numeric references (
ȪorȪ) when escaping is required - Use
\022Ain CSScontentwhen generating the symbol via pseudo-elements - Use fonts that support Latin Extended-B characters (U+0180–U+024F)
- Distinguish Ȫ from Ö (diaeresis only) and Ō (macron only)
Don’t
- Expect a named HTML entity—none exists for Ȫ
- Confuse Ȫ (diaeresis + macron) with Ö, Ō, or Ȭ
- Combine separate diacritics when the precomposed Ȫ is required
- Put CSS escape
\022Ain HTML text nodes - Use
\0022Ain CSS—the correct escape is\022A
Key Takeaways
Type Ȫ directly, or use hex/decimal references
Ȫ ȪFor CSS stylesheets, use the escape in the content property
\022AUnicode U+022A — LATIN CAPITAL LETTER O WITH DIAERESIS AND MACRON
Linguistics and transliteration; lowercase is ȫ (U+022B)
Previous: Uppercase O Circumflex (Ô) Next: Uppercase O Dot Above
❓ Frequently Asked Questions
Ȫ (hex), Ȫ (decimal), or \022A in CSS content. There is no named HTML entity for Ȫ. In UTF-8 you can also type Ȫ directly.U+022A (LATIN CAPITAL LETTER O WITH DIAERESIS AND MACRON). Latin Extended-B block. Hex 022A, decimal 554. Lowercase form is U+022B (ȫ).Ȫ or Ȫ, or the CSS entity \022A. In UTF-8 pages you can type Ȫ directly.Ȫ or Ȫ) is used in HTML content; CSS entity \022A is used in stylesheets in the content property of pseudo-elements. Both produce Ȫ.Explore More HTML Entities!
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