HTML Entity for Uppercase U Diaeresis Grave (Ǜ)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+01DB

HTML Entity for uppercase U diaeresis grave (U+01DB) tutorial illustration

Definition

What Is Uppercase U Diaeresis Grave?

Uppercase U Diaeresis Grave (Ǜ) is the Latin Extended-B character at Unicode U+01DB (LATIN CAPITAL LETTER U WITH DIAERESIS AND GRAVE). HTML5 has no named entity — use hex or decimal. Use it for Hanyu Pinyin fourth-tone ü in capitals and other Latin-script text that needs Ǜ.

Remember

Character     Ǜ
Unicode       U+01DB
Named entity  (none)
Hex entity    &#x01DB;
Decimal       &#475;
CSS escape    \01DB
Not the same  ǜ · &Uuml; · &Ugrave; · Ǚ

Hex, decimal, CSS, and a typed character all produce the same glyph: Ǜ. Prefer Ǜ or Ǜ in HTML markup. For the lowercase form see lowercase U diaeresis grave; for third tone see uppercase U diaeresis caron.

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	None	Use numeric or type the character
Hex entity	`Ǜ`	HTML markup (preferred)
Decimal entity	`Ǜ`	HTML markup
CSS escape	`\01DB`	Stylesheet `content` (4 hex digits)
Direct character	`Ǜ`	UTF-8 HTML text
Lowercase pair	ǜ (U+01DC)	No named entity — use `ǜ`

When to Use Which

Situation	Use
Capital U with diaeresis + grave	`Ǜ` or type `Ǜ`
Numeric-only markup	`Ǜ` or `Ǜ`
Generated text via `::before` / `::after`	`content: "\01DB"`
Lowercase u with diaeresis + grave	Use ǜ (`ǜ`)
Capital U with diaeresis only	Use Ü (U+00DC)
Capital U with grave only	Use Ù (U+00D9)
Diaeresis + caron (Pinyin 3rd tone)	Use Ǚ (`Ǚ`)

See it

Live Preview

Ǜ in Pinyin context, compared with lowercase and related look-alikes.

Pinyin Case pair: Ǜ / ǜ

Large glyph Ǜ

Hex entity Ǜ → Ǜ

vs look-alikes Ǜ | ǜ | Ü | Ù | Ǚ

With entities Hex: Ǜ | Decimal: Ǜ

Code

Complete HTML Example

One page that shows Uppercase U Diaeresis Grave with hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Hex + Decimal + CSS + Typed

Four ways to display Ǜ in HTML and CSS. No named entity exists.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Uppercase U Diaeresis Grave (Ǜ)</title>
  <style>
    #point::after {
      content: "\01DB";
    }
  </style>
</head>
<body>
  <p>Built with Hex: &#x01DB;</p>
  <p>Built with Decimal: &#475;</p>
  <p id="point">Built with CSS: </p>
  <p>Typed: Ǜ</p>
  <p lang="zh-Latn">Case pair: Ǜ / ǜ</p>
</body>
</html>

Try It Yourself

How It Works

1. Hex / decimal: U+01DB → Ǜ or Ǜ. The browser turns either into Ǜ.

2. Typed: in a UTF-8 document you can paste Ǜ directly — same glyph, no entity.

3. CSS: use \01DB in content (four hex digits; not an HTML entity). #point::after appends that Ǜ after the paragraph text.

4. Case pair: lowercase is U+01DC (ǜ) — see lowercase U diaeresis grave. Neither case has a named entity.

Pitfalls & Tips

Common mistakes when working with Uppercase U Diaeresis Grave.

Named

There is no named entity

HTML5 does not define a name for U+01DB. Use Ǜ or Ǜ.

Not plain U umlaut

U+00DC (Ü, Ü) has diaeresis only — no grave. See uppercase U umlaut.

Not plain U grave

U+00D9 (Ù, Ù) has grave only — no diaeresis. See uppercase U grave.

Tone

Grave ≠ caron for Pinyin tones

Fourth tone uses grave (U+01DB). Third tone uses caron (U+01D9). See uppercase U diaeresis caron.

Combining

Prefer the precomposed letter

Use U+01DB instead of stacking combining marks on U or Ü when the precomposed form is available.

CSS vs HTML

Do not mix escapes

\01DB belongs in CSS strings. Ǜ / Ǜ belong in HTML.

Compatibility

Browser Support

Uppercase U Diaeresis Grave (U+01DB) and its entity forms (Ǜ, Ǜ, CSS \\01DB) are supported in all mainstream browsers when the page is UTF-8 and the font covers Latin Extended-B.

✓ Universal support

Uppercase U Diaeresis Grave (Ǜ)

Encode with hex, decimal, CSS escape, or type the character — same Unicode code point everywhere. No named entity.

100% Browser coverage

Google Chrome Supported

Yes

Microsoft Edge Supported

Yes

Mozilla Firefox Supported

Yes

Apple Safari Supported

Yes

Opera Supported

Yes

Internet Explorer All versions

Yes

U+01DB Full support

Bottom line: Prefer Ǜ in HTML text. Use Ǜ as an equivalent, and \\01DB only inside CSS content. Glyph display depends on font coverage.

Remember

Key Takeaways

Unicode: this letter is U+01DB (decimal 475) — glyph Ǜ.
HTML: prefer Ǜ — also Ǜ. No named entity.
CSS: use \01DB inside content for generated text.
Watch out: Ǜ ≠ Ü ≠ Ù ≠ Ǚ ≠ ǜ.

One line: U+01DB → Ǜ / Ǜ / CSS \01DB (no named entity).

Frequently Asked Questions

How do I display Uppercase U Diaeresis Grave (Ǜ) in HTML using entities?

Use Ǜ (hex), Ǜ (decimal), type Ǜ directly in UTF-8, or the CSS escape \01DB in the content property. There is no named HTML entity. Prefer Ǜ for readable markup.

What is the Unicode value for Uppercase U Diaeresis Grave?

U+01DB (LATIN CAPITAL LETTER U WITH DIAERESIS AND GRAVE). Hex 01DB, decimal 475. It belongs to Latin Extended-B (U+0180–U+024F).

Is there a named HTML entity for U+01DB?

No. HTML5 does not define a named form. Use numeric references Ǜ or Ǜ, or type Ǜ in UTF-8.

How is U+01DB different from U+00DC, U+00D9, or U+01D9?

U+01DB combines diaeresis and grave on capital U. U+00DC (Ü) has only diaeresis. U+00D9 (Ù) has only grave. U+01D9 has diaeresis+caron.

When should I use this HTML entity?

Use it for Hanyu Pinyin fourth-tone ü in all-caps or title case, and other Latin-script text that needs capital U with diaeresis and grave.

What is the difference between HTML code and CSS entity for U+01DB?

HTML entities (Ǜ or Ǜ) go in markup. The CSS escape \01DB is used in stylesheets (usually in the content property of ::before/::after). Prefer four hex digits in CSS.

Did you know?

Uppercase U Diaeresis Grave is Unicode U+01DB (decimal 475) — glyph Ǜ (LATIN CAPITAL LETTER U WITH DIAERESIS AND GRAVE) in Latin Extended-B. HTML5 has no named entity — use Ǜ or Ǜ. Prefer it for Hanyu Pinyin fourth-tone ü (capitalized). Do not confuse it with lowercase U+01DC (ǜ), plain Ü (Ü), plain Ù (Ù), or diaeresis+caron (U+01D9).

Next: Uppercase U Diaeresis Macron

Learn the HTML entity for capital U with diaeresis and macron — next in this sequence.

Continue tutorial →

About the author

Mari Selvan M P 🔗

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