HTML Entity for Uppercase C Reverse (Ɔ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+0186
HTML Entity for Uppercase C Reverse tutorial illustration

What You'll Learn

How to display the uppercase C reverse (Ɔ) in HTML using hexadecimal, decimal, and CSS escape methods. Formally LATIN CAPITAL LETTER OPEN O, this character is also called reversed C and is used in linguistics, phonetic notation, and African language orthography. It is U+0186 in the Latin Extended-B block.

Render it with Ɔ, Ɔ, or CSS escape \0186. There is no named HTML entity for this character, so numeric codes or CSS must be used.

⚡ Quick Reference — Uppercase C Reverse Entity

Unicode U+0186

Latin Extended-B

Hex Code Ɔ

Hexadecimal reference

HTML Code Ɔ

Decimal reference

Named Entity —

No named entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+0186
Hex code       Ɔ
HTML code      Ɔ
Named entity   (none)
CSS code       \0186
Meaning        Latin capital letter open O (reversed C)
Related        U+0254 = lowercase (ɔ)
Block          Latin Extended-B (U+0180–U+024F)
1

Complete HTML Example

A simple example showing the uppercase C reverse (Ɔ) using hexadecimal code, decimal HTML code, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\0186";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x0186;</p>
<p>Symbol (decimal): &#390;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The uppercase C reverse (Ɔ) renders correctly in modern browsers when UTF-8 is used:

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

👀 Live Preview

See the uppercase C reverse (Ɔ) and how it differs from related characters:

Large glyphƆ
Character typeLatin capital letter open O (reversed C)
Case pairƆ (U+0186) / ɔ (U+0254)
Not the same asC (U+0043), Ƈ (C hook), or ℂ (double-struck)
Numeric refs&#x0186; &#390; \0186

🧠 How It Works

1

Hexadecimal Code

&#x0186; uses the Unicode hexadecimal value 0186 to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#390; uses the decimal Unicode value 390 to display the same character. A common method for Latin Extended-B characters.

HTML markup
3

CSS Entity

\0186 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: Ɔ. Unicode U+0186 sits in Latin Extended-B. Lowercase equivalent: U+0254 (ɔ). Do not confuse Ɔ with plain C (U+0043) or Ƈ (C hook). There is no named HTML entity.

✅

Use Cases

The uppercase C reverse (Ɔ) is commonly used in:

🔤 Linguistics

Phonetic transcriptions and linguistic notation requiring the open-O / reversed-C character.

🇲🇭 African languages

Extended Latin orthography in African scripts and languages that use Ɔ in their alphabet.

🌐 Internationalization

Websites requiring correct rendering of Latin Extended-B for African and specialized language content.

📄 Publishing

Books, articles, and editorial content with phonetic scripts or specialized terminology using Ɔ.

🎨 Orthography

Extended Latin orthographic systems where the open-O (reversed C) variant is required for accuracy.

🔍 Search & SEO

Correct encoding so specialized content is indexed and displayed consistently.

📧 Forms & Input

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

💡 Best Practices

Do

  • Use &#390; or &#x0186; in HTML (no named entity exists)
  • Serve pages as UTF-8; you can also type Ɔ directly in UTF-8 source
  • Pick one style (hex or decimal) per project for consistency
  • Use fonts that support Latin Extended-B (U+0180–U+024F)
  • Distinguish Ɔ from plain C (U+0043), Ƈ (C hook), and ℂ (double-struck)

Don’t

  • Assume a named entity exists—there is none for Ɔ
  • Substitute plain C when Ɔ is required for linguistic accuracy
  • Put CSS escape \0186 in HTML text nodes
  • Assume all fonts render Latin Extended-B glyphs identically
  • Mix entity styles randomly in one file

Key Takeaways

1

Three references render Ɔ (no named entity)

&#x0186; &#390;
2

For CSS stylesheets, use the escape in the content property

\0186
3

Unicode U+0186 — LATIN CAPITAL LETTER OPEN O

4

Used in linguistics, phonetic notation, and African language orthography

5

Previous: Uppercase C Hook (Ƈ)   Next: Uppercase C Stretched (ʗ)

❓ Frequently Asked Questions

Use &#x0186; (hex), &#390; (decimal), or \0186 in CSS content. There is no named HTML entity; use numeric codes or CSS.
U+0186 (LATIN CAPITAL LETTER OPEN O). Latin Extended-B block. Hex 0186, decimal 390. Also called reversed C; used in linguistics, phonetic notation, and African language orthography.
In linguistic and phonetic content, extended Latin orthography, African language scripts, academic texts, and any content requiring the open-O / reversed-C character.
HTML code (&#390; or &#x0186;) is used in HTML content. The CSS entity (\0186) is used in CSS, e.g. in the content property of pseudo-elements. Both produce Ɔ but in different contexts.
Named HTML entities are mainly for ASCII, Latin-1, and common symbols. Extended Latin characters like Ɔ use numeric codes (hex or decimal) because they belong to specialized Unicode blocks. This is standard for Latin Extended-B 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.

AWS Certified Developer – Associate (Credly)

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