HTML Entity for Uppercase I Script Capital (ℐ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+2110
HTML Entity for Uppercase I Script Capital tutorial illustration

What You'll Learn

How to display the script capital I (ℐ) in HTML using named entity, hexadecimal, decimal, and CSS escape methods. This character is part of the Letterlike Symbols block and is used in mathematical notation and script-style typography. Its official Unicode name is SCRIPT CAPITAL I (U+2110).

Render it with ℐ, ℐ, ℐ, or CSS escape \2110. The named entity ℐ is often the most readable option in HTML source. Do not confuse ℐ with ℑ (ℑ, imaginary part).

⚡ Quick Reference — Uppercase I Script Capital Entity

Unicode U+2110

Letterlike Symbols

Hex Code ℐ

Hexadecimal reference

HTML Code ℐ

Decimal reference

Named Entity ℐ

Most readable option

Reference Table
Name           Value
────────────   ──────────
Unicode        U+2110
Hex code       ℐ
HTML code      ℐ
Named entity   ℐ
CSS code       \2110
Meaning        Script capital I
Not the same   U+2111 = ℑ (black-letter I, imaginary part)
Related        U+2130 = ℰ (script E); U+2131 = ℱ (script F)
Block          Letterlike Symbols (U+2100–U+214F)
1

Complete HTML Example

A simple example showing the script capital I (ℐ) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\2110";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x2110;</p>
<p>Symbol (decimal): &#8464;</p>
<p>Symbol (named): &Iscr;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The script capital I (ℐ) and the named entity &Iscr; are supported in modern browsers when UTF-8 is used:

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

👀 Live Preview

See the script capital I (ℐ) in mathematical and typographic contexts:

Large glyphℐ
Script lettersℰ ℐ ℱ
Not imaginary partℐ (script I) ≠ ℑ (&image;, U+2111)
Named entity&Iscr; renders as ℐ
Numeric refs&#x2110; &#8464; &Iscr; \2110

🧠 How It Works

1

Hexadecimal Code

&#x2110; uses the Unicode hexadecimal value 2110 to display the script capital I. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#8464; uses the decimal Unicode value 8464 to display the same character. A common method for Letterlike Symbols.

HTML markup
3

Named Entity

&Iscr; is the standard named entity for ℐ—readable in source HTML and part of the HTML5 entity set.

HTML markup
4

CSS Entity

\2110 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: ℐ. Unicode U+2110 sits in Letterlike Symbols. Do not confuse with plain I (U+0049) or ℑ (&image;, imaginary part, U+2111).

✅

Use Cases

The script capital I (ℐ) is commonly used in:

📐 Mathematical notation

Script-style capital I in equations, set notation, and formal mathematical writing.

🎨 Typography

Elegant script lettering in calligraphy, invitations, and formal design projects.

📄 Academic papers

Scholarly documents and research papers using script letter notation.

🎨 Decorative text

Special UI elements and unique text formatting requiring script-style characters.

📚 Education

Math courses teaching script letter conventions and notation.

🌐 Web publishing

Scientific blogs and online textbooks that need proper script I rendering.

⚙ Font design

Typography work and character set demonstrations for Letterlike Symbols.

💡 Best Practices

Do

  • Use &Iscr; in HTML when possible for readability
  • Serve pages as UTF-8; you can also type ℐ directly in UTF-8 source
  • Use math-friendly fonts (e.g. Cambria Math, STIX) for reliable script glyph display
  • Distinguish ℐ (script I) from ℑ (&image;, imaginary part) and plain I
  • Pick one entity style (named, hex, or decimal) per project for consistency

Don’t

  • Substitute ℑ (&image;) when ℐ (&Iscr;) is required
  • Substitute plain I when ℐ is required in math or script notation
  • Put CSS escape \2110 in HTML text nodes
  • Use padded Unicode notation like U+02110—the correct value is U+2110
  • Use \02110 in CSS—the correct escape is \2110

Key Takeaways

1

Four references render ℐ; named entity is most readable

&#x2110; &#8464; &Iscr;
2

For CSS stylesheets, use the escape in the content property

\2110
3

Unicode U+2110 — SCRIPT CAPITAL I

4

Not the same as ℑ (&image;, imaginary part operator)

5

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❓ Frequently Asked Questions

Use &Iscr; (named), &#x2110; (hex), &#8464; (decimal), or \2110 in CSS content. The named entity &Iscr; is the most readable for HTML content.
U+2110 (SCRIPT CAPITAL I). Letterlike Symbols block. Hex 2110, decimal 8464. Used in mathematical notation and script-style typography.
In mathematical notation, script-style typography, decorative text, formal design, font demonstrations, and academic content requiring script capital I.
HTML code (&#8464; or &#x2110;) or the named entity &Iscr; is used in HTML content. The CSS entity (\2110) is used in CSS, e.g. in the content property of pseudo-elements. Both produce ℐ but in different contexts.
Yes. The named HTML entity is &Iscr;. It is part of the standard HTML5 entity set and is well supported. Do not confuse with &image; (ℑ, black-letter I for imaginary part).

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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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