HTML Entity for Uppercase E Open Style (Ɛ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+0190
HTML Entity for Uppercase E Open Style tutorial illustration

What You'll Learn

How to display the uppercase open E (Ɛ) in HTML using hexadecimal, decimal, and CSS escape methods. In Unicode this is U+0190 (LATIN CAPITAL LETTER OPEN E), the capital counterpart of the IPA open e (ɛ). It sits in the Latin Extended-B block.

Render it with Ɛ, Ɛ, or CSS escape \190. There is no named HTML entity for this character, so numeric codes or CSS must be used.

⚡ Quick Reference — Uppercase E Open Style Entity

Unicode U+0190

Latin Extended-B

Hex Code Ɛ

Hexadecimal reference

HTML Code Ɛ

Decimal reference

Named Entity —

No named entity

Reference Table
Name           Value
────────────   ──────────
Unicode        U+0190
Hex code       Ɛ
HTML code      Ɛ
Named entity   (none)
CSS code       \190
Meaning        Latin capital letter open E
Related        U+025B = open e (ɛ); U+018E = reversed E (Ǝ)
Block          Latin Extended-B (U+0180–U+024F)
1

Complete HTML Example

A simple example showing the uppercase open E (Ɛ) using hexadecimal code, decimal HTML code, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\190";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x0190;</p>
<p>Symbol (decimal): &#400;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The uppercase open E (Ɛ) renders correctly in modern browsers when UTF-8 is used and the font supports Latin Extended-B:

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

👀 Live Preview

See the uppercase open E (Ɛ) in typographic and linguistic contexts:

Large glyphƐ
Case pairƐ (uppercase) / ɛ (lowercase open e)
Open E seriesɛ ɜ ɝ Ɛ
Not the same asplain E (U+0045)   Ǝ (reversed E)
Numeric refs&#x0190; &#400; \190

🧠 How It Works

1

Hexadecimal Code

&#x0190; uses the Unicode hexadecimal value 0190 to display the uppercase open E. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#400; uses the decimal Unicode value 400 to display the same character. A common method for Latin Extended-B characters.

HTML markup
3

CSS Entity

\190 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: Ɛ. Unicode U+0190 sits in Latin Extended-B. Lowercase counterpart in IPA: ɛ (U+025B). There is no named HTML entity.

✅

Use Cases

The uppercase open E (Ɛ) is commonly used in:

🎨 Typography

Typographic designs, font demos, and creative text that needs the capital open E form.

🔤 Phonetics

Capital open E in phonetic notation alongside lowercase open e (ɛ).

📚 Linguistics

Language documentation and academic papers on extended Latin characters.

📄 Specialized fonts

Font testing tools and Unicode character showcases for Latin Extended-B.

📝 Academic papers

Scholarly publications referencing capital open E in linguistic notation.

🌐 Internationalization

Content requiring extended Latin glyphs beyond basic ASCII or Latin-1.

🔍 Search & SEO

Correct rendering so specialized linguistic content can be found and indexed.

💡 Best Practices

Do

  • Use &#400; or &#x0190; in HTML (no named entity exists)
  • Serve pages as UTF-8; you can also type Ɛ directly in UTF-8 source
  • Use fonts that support Latin Extended-B (U+0180–U+024F)
  • Distinguish Ɛ (open E) from plain E (U+0045) and ɛ (lowercase open e)
  • Pick one numeric style (hex or decimal) per project for consistency

Don’t

  • Assume a named entity exists—there is none for Ɛ
  • Substitute plain E when Ɛ is required
  • Put CSS escape \190 in HTML text nodes
  • Use padded Unicode notation like U+00190—the correct value is U+0190
  • Use \00190 in CSS—the correct escape is \190

Key Takeaways

1

Three references render Ɛ (no named entity)

&#x0190; &#400;
2

For CSS stylesheets, use the escape in the content property

\190
3

Unicode U+0190 — LATIN CAPITAL LETTER OPEN E

4

Capital counterpart of IPA open e (ɛ, U+025B) in Latin Extended-B

5

Previous: Uppercase E Open Reverse Hook (ɝ)   Next: Uppercase E Reverse (Ǝ)

❓ Frequently Asked Questions

Use &#x0190; (hex), &#400; (decimal), or \190 in CSS content. There is no named HTML entity for this character.
U+0190 (LATIN CAPITAL LETTER OPEN E). Latin Extended-B block. Hex 0190, decimal 400. Uppercase counterpart of U+025B (open e).
In typography, phonetic notation, linguistic content, specialized fonts, and any context requiring the capital open E glyph.
HTML code (&#400; or &#x0190;) is used in HTML content. The CSS entity (\190) is used in CSS, e.g. in the content property of pseudo-elements. Both produce Ɛ but in different contexts.
No. There is no named HTML entity for Ɛ. Use &#400; or &#x0190; in HTML, or \190 in CSS. 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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Uppercase E Open Reverse Hook (ɝ) Uppercase E Reverse (Ǝ)