HTML Entity for Lowercase D Hook (ɗ)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+0257

What Is the Lowercase D Hook Entity?

Lowercase d hook (ɗ) is the IPA Extensions character at Unicode U+0257 (LATIN SMALL LETTER D WITH HOOK). It is used in the International Phonetic Alphabet for the voiced alveolar implosive, and in African orthographies such as Hausa and Fula.

Remember
Character     ɗ
Unicode       U+0257
Hex entity    ɗ
Decimal       ɗ
CSS escape    \0257
Named entity  (none)
Capital       Ɗ (U+018A)

Hex, decimal, CSS, and a typed character all produce the same glyph: ɗ. Prefer ɗ in HTML source when you need an explicit entity.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Hex entityɗHTML markup (best default)
Decimal entityɗHTML markup
CSS escape\0257Stylesheet content
Direct characterɗUTF-8 HTML text
Named entitynoneUse hex or decimal instead

When to Use Which

SituationUse
Readable HTML sourceɗ
Decimal entity requiredɗ
Generated text via ::before / ::aftercontent: "\0257"
Plain letter dSee Lowercase D (U+0064)
D with curl insteadSee Lowercase D Curl (U+0221)

Live Preview

Lowercase d hook in phonetic and comparison contexts.

IPA sample /ɗa/ (example)
Large glyph ɗ
Hex entity ɗ → ɗ
vs d / ȡ / ɖ / capital ɗ  |  d  |  ȡ  |  ɖ  |  Ɗ
With entities Hex: ɗ | Decimal: ɗ

Complete HTML Example

One page that shows this character with hex, decimal, and CSS. Use View Output or open the live editor.

Hex + Decimal + CSS

Three ways to produce ɗ in a single document (no named entity).

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Lowercase D Hook (ɗ)</title>
  <style>
    #point::after {
      content: "\0257";
    }
  </style>
</head>
<body>
  <p>Using Hex Code: &#x257;</p>
  <p>Using HTML Code: &#599;</p>
  <p id="point">Using CSS Entity: </p>
  <p>IPA: /&#x257;a/</p>
</body>
</html>
Try It Yourself

How It Works

1. Hex: U+0257 → &#x257; in HTML. The browser turns it into ɗ.

2. Decimal: same code point as 599 → &#599;. Same result as hex.

3. Named: HTML5 does not define a named entity for this character — use hex or decimal instead.

4. CSS: use \0257 in content (not an HTML entity). #point::after appends that ɗ after the paragraph text.

Pitfalls & Tips

Common mistakes when working with lowercase d hook.

Named

No &…; shortcut

HTML5 has no named entity for U+0257. Use &#x257; or &#599;.

Look-alikes

Not plain d, curl, or tail

Do not substitute ASCII d, d curl (U+0221), or d with tail (U+0256) when IPA or orthography needs the hook form.

IPA

Phonetic meaning

In IPA, ɗ marks the voiced alveolar implosive — a different sound from plain d.

CSS vs HTML

Do not mix escapes

\0257 belongs in CSS. &#x257; / &#599; belong in HTML.

Encoding

Declare UTF-8

If you type ɗ directly, keep <meta charset="UTF-8"> so the file is not misread.

Fonts

Check glyph coverage

Some fonts omit IPA Extensions. Pick a font that includes U+0257 if the glyph is missing.

Browser Support

Lowercase d hook (U+0257) and its entity forms (&#x257;, &#599;, CSS \\0257) are supported in all modern browsers. Glyph display depends on font coverage.

✓ Universal encoding

Lowercase D Hook (&#x0257;)

Encode with hex, decimal, or CSS escape — or type ɗ directly in UTF-8 HTML.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer IE 9+
Yes*
U+0257 Full support

Bottom line: Prefer &#x257; for readable HTML. Use \\0257 only inside CSS content.

Key Takeaways

  • Unicode: this character is U+0257 (decimal 599).
  • HTML: prefer &#x257; — or use &#599; (no named entity).
  • CSS: use \0257 inside content for generated text.
  • Watch out: ɗ ≠ plain d ≠ curl (ȡ) ≠ tail (ɖ).

One line: U+0257 → &#x257; / &#599; / CSS \0257 (no named entity).

Frequently Asked Questions

Use &#x257; (hex), &#599; (decimal), or the CSS escape \0257 in the content property. All render ɗ when the font supports IPA Extensions. There is no named HTML entity.
U+0257 (LATIN SMALL LETTER D WITH HOOK). Hex 257, decimal 599. It belongs to IPA Extensions (U+0250–U+02AF).
No. HTML5 does not define a named entity for U+0257. Use numeric references like &#x257; or &#599;.
Use it for IPA phonetic transcription (voiced alveolar implosive), Hausa and Fula orthography, and linguistic content that needs ɗ.
HTML entities (&#599; or &#x257;) go in markup. The CSS escape \0257 is used in stylesheets (usually in the content property of ::before/::after). Both render ɗ.
No. Plain d is U+0064. D curl ȡ is U+0221. D with tail ɖ is U+0256. D with hook ɗ is U+0257 — used for the voiced alveolar implosive in IPA.

Did you know?

Lowercase d hook is Unicode U+0257 (decimal 599) — LATIN SMALL LETTER D WITH HOOK in IPA Extensions. HTML5 has no named entity — use &#x257; or &#599;. Capital is Ɗ (U+018A). Used in IPA for the voiced alveolar implosive, and in orthographies such as Hausa and Fula. Not the same as plain d, d curl (ȡ), or d with tail (ɖ).

Next: Lowercase D Latin

Learn the HTML entity for Lowercase D Latin — next in this sequence.

Continue tutorial →

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
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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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