HTML Entity for Uppercase I Caron (Ǐ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+01CF
HTML Entity for Uppercase I Caron tutorial illustration

What You'll Learn

How to display the uppercase I with caron (Ǐ) in HTML using hexadecimal, decimal, and CSS escape methods. This character is U+01CF in the Latin Extended-B block. The caron (háček) is a wedge-shaped diacritic used in Czech, Slovak, and other writing systems.

Render it with Ǐ, Ǐ, or CSS escape \01CF. There is no named HTML entity. In UTF-8 you can also type Ǐ directly in source.

⚡ Quick Reference — Uppercase I Caron Entity

Unicode U+01CF

Latin Extended-B

Hex Code Ǐ

Hexadecimal reference

HTML Code Ǐ

Decimal reference

Named Entity —

Use numeric codes only

Reference Table
Name           Value
────────────   ──────────
Unicode        U+01CF
Hex code       Ǐ
HTML code      Ǐ
Named entity   (none)
CSS code       \01CF
Meaning        Latin capital letter I with caron
Related        U+01D0 = ǐ (lowercase)
Block          Latin Extended-B (U+0180–U+024F)
1

Complete HTML Example

This example demonstrates the uppercase I caron (Ǐ) using hexadecimal code, decimal HTML code, and a CSS content escape. There is no named HTML entity for this character:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\01CF";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x1CF;</p>
<p>Symbol (decimal): &#463;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The uppercase I caron (Ǐ) numeric references and CSS escape are supported in modern browsers:

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

👀 Live Preview

See the uppercase I caron (Ǐ) in linguistic and content contexts:

Large glyphǏ
HáčekǏ marks a caron (ˇ) over I
Case pairǏ (uppercase) / ǐ (lowercase)
Numeric refs&#x1CF; &#463; \01CF
No named entityUse hex or decimal only

🧠 How It Works

1

Hexadecimal Code

&#x1CF; uses the Unicode hexadecimal value 1CF to display the character. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#463; uses the decimal Unicode value 463 to display the same character. A common method for Latin Extended-B characters.

HTML markup
3

CSS Entity

\01CF 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: Ǐ. Unicode U+01CF sits in Latin Extended-B. Lowercase equivalent: U+01D0 (ǐ). No named HTML entity—use numeric codes in markup. Do not confuse with plain I (U+0049), acute &Iacute; (Í), or breve Ĭ (U+012C).

✅

Use Cases

The uppercase I caron (Ǐ) is commonly used in:

🇨🇿 Czech & Slovak

Proper names and words requiring the háček diacritic on capital I at sentence boundaries.

🔤 Linguistic notation

Transliteration systems and comparative linguistics using caron-marked vowels.

🌐 Internationalization

Websites and apps serving Czech- or Slovak-speaking audiences.

📝 Proper names

Personal and place names that include Ǐ when capitalized.

📄 Academic publishing

Scholarly papers and language documentation with extended Latin characters.

📚 Language learning

Courses teaching Czech, Slovak, or caron diacritics on vowels.

🔍 Search & SEO

Correct rendering so users can find content with proper diacritic spelling.

💡 Best Practices

Do

  • Use &#x1CF; or &#463; for readable HTML markup
  • Serve pages as UTF-8; you can also type Ǐ directly in UTF-8 source
  • Set lang attributes (e.g. lang="cs" or lang="sk") for correct pronunciation
  • Use fonts that support Latin Extended-B (U+0180–U+024F)
  • Distinguish Ǐ (caron) from Í (acute) and Ĭ (breve)

Don’t

  • Substitute plain I when Ǐ is required for correct spelling
  • Expect a named entity—none exists for U+01CF
  • Confuse caron Ǐ with acute Í or breve Ĭ
  • Put CSS escape \01CF in HTML text nodes
  • Use padded Unicode notation like U+001CF—the correct value is U+01CF
  • Use \001CF in CSS—the correct escape is \01CF

Key Takeaways

1

Two HTML numeric references plus CSS render Ǐ

&#x1CF; &#463;
2

For CSS stylesheets, use the escape in the content property

\01CF
3

Unicode U+01CF — LATIN CAPITAL LETTER I WITH CARON

4

Essential for Czech, Slovak, and Central European i18n content

5

Three methods, no named HTML entity

❓ Frequently Asked Questions

Use &#x1CF; (hex), &#463; (decimal), or \01CF in CSS content. There is no named entity.
U+01CF (LATIN CAPITAL LETTER I WITH CARON). Latin Extended-B block. Hex 1CF, decimal 463. Used in Czech, Slovak, and transliteration systems.
When writing Czech or Slovak text, multilingual websites, proper names, linguistic documentation, academic papers, and any content requiring the I with caron (háček) diacritic.
HTML references (&#463; or &#x1CF;) go in HTML content. The CSS escape (\01CF) is used in CSS, e.g. in the content property of pseudo-elements. Both produce Ǐ but in different contexts.
Named entities cover a subset of common characters. U+01CF has no named entity—use &#x1CF; or &#463; in markup, or \01CF in CSS. Related caron letters like &Ecaron; (Ě) do have named entities.

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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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