HTML Entity for H Black Letter (ℌ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+210C
HTML Entity for H Black Letter tutorial illustration

What You'll Learn

How to display the black-letter H (ℌ) in HTML using named entity, hexadecimal, decimal, and CSS escape methods. Unicode officially names this character BLACK-LETTER CAPITAL H (U+210C)—a letterlike symbol used in mathematical notation (e.g. Hilbert space) and blackletter (fraktur) typography. It sits in the Letterlike Symbols block.

Render it with ℌ, ℌ, ℌ, or CSS escape \210C. The named entity ℌ is often the most readable option in HTML source.

⚡ Quick Reference — H Black Letter Entity

Unicode U+210C

Letterlike Symbols

Hex Code ℌ

Hexadecimal reference

HTML Code ℌ

Decimal reference

Named Entity ℌ

Most readable option

Reference Table
Name           Value
────────────   ──────────
Unicode        U+210C
Hex code       ℌ
HTML code      ℌ
Named entity   ℌ
CSS code       \210C
Meaning        Black-letter capital H (fraktur H)
Related        U+0068 = plain h (Basic Latin)
Block          Letterlike Symbols (U+2100–U+214F)
1

Complete HTML Example

A simple example showing the black-letter H (ℌ) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\210C";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x210C;</p>
<p>Symbol (decimal): &#8460;</p>
<p>Symbol (named): &Hfr;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The black-letter H (ℌ) and the named entity &Hfr; are supported in all modern browsers:

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

👀 Live Preview

See the black-letter H (ℌ) in mathematical and typographic contexts:

Large glyphℌ
Named entity&Hfr; renders as ℌ
Used inMathematical notation and fraktur typography
Not the same asplain h (U+0068) or ℋ (script H, &Hscr;)
Numeric refs&#x210C; &#8460; &Hfr; \210C

🧠 How It Works

1

Named Entity

&Hfr; is the HTML named entity for the black-letter H (fraktur H). It is easy to read and remember for mathematical and typographic content.

HTML markup
2

Hexadecimal Code

&#x210C; uses the Unicode hexadecimal value 210C to display the character. The x prefix indicates hexadecimal format.

HTML markup
3

Decimal HTML Code

&#8460; uses the decimal Unicode value 8460 to display the same character. A common method for Letterlike Symbols.

HTML markup
4

CSS Entity

\210C is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All four methods produce the glyph: ℌ. Unicode U+210C is BLACK-LETTER CAPITAL H in Letterlike Symbols. Do not confuse ℌ with plain h (U+0068) or ℋ (script H, &Hscr;).

✅

Use Cases

The black-letter H (ℌ) is commonly used in:

📐 Mathematical notation

Hilbert space notation and scientific content where fraktur or letterlike symbols are used.

🔤 Fraktur typography

Gothic-style design, historical documents, and decorative blackletter typography.

🔬 Academic publishing

Papers, textbooks, and documentation using letterlike or fraktur symbols.

📚 Physics & math

Denoting Hilbert space or related concepts in physics and mathematics.

📄 Educational content

Tutorials explaining mathematical notation or typographic styles.

♿ Accessibility

Proper encoding helps screen readers handle ℌ in scientific text.

🌐 Web & print

Consistent rendering of letterlike symbols across web and print media.

💡 Best Practices

Do

  • Use &Hfr; for readability when authoring HTML by hand
  • Serve pages as UTF-8; you can also type ℌ directly in UTF-8 source
  • Pick one style (named, hex, or decimal) per project for consistency
  • Use fonts that support Letterlike Symbols or mathematical symbols
  • Distinguish ℌ (black-letter H) from plain h and ℋ (script H)

Don’t

  • Substitute plain h when ℌ is required for math notation
  • Confuse ℌ (&Hfr;) with ℋ (&Hscr;, script capital H)
  • Put CSS escape \210C in HTML text nodes
  • Assume all fonts render Letterlike Symbols identically
  • Mix entity styles randomly in one file without reason

Key Takeaways

1

Four references render ℌ

&Hfr; &#x210C;
2

For CSS stylesheets, use the escape in the content property

\210C
3

Unicode U+210C — BLACK-LETTER CAPITAL H

4

Letterlike Symbols block; used in math and fraktur typography

5

Previous: Lowercase H   Next: Lowercase H Caron

❓ Frequently Asked Questions

Use &Hfr; (named), &#x210C; (hex), &#8460; (decimal), or \210C in CSS content. All four methods render ℌ correctly.
U+210C (BLACK-LETTER CAPITAL H). Letterlike Symbols block. Hex 210C, decimal 8460. Used in mathematical notation and fraktur typography.
In mathematical and scientific content (e.g. Hilbert space), blackletter or fraktur typography, historical or decorative design, and any content that requires this letterlike symbol.
The named HTML entity is &Hfr;. You can also use &#x210C;, &#8460;, or \210C in CSS content.
ℌ (U+210C, &Hfr;) is a letterlike symbol—the black-letter (fraktur) form used in mathematics and typography. The regular Latin small letter h (U+0068) is in Basic Latin. They are different Unicode 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.

AWS Certified Developer – Associate (Credly)

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