HTML Entity for Uppercase O Ogonek (Ǫ)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+01EA

HTML Entity for uppercase O ogonek (U+01EA) tutorial illustration

Definition

What Is Uppercase O Ogonek?

Uppercase O ogonek (Ǫ) is the Unicode character at U+01EA in Latin Extended-B. Official name: LATIN CAPITAL LETTER O WITH OGONEK — a capital O with a small hook (ogonek) under the right side, used for nasal vowels (for example in Navajo orthography).

Remember

Character     Ǫ
Unicode       U+01EA
Named entity  &Oogon;  (capital O)
Hex entity    &#x1EA;
Decimal       &#490;
CSS escape    \01EA
Not the same  ǫ · Ǭ · Ö

Prefer &Oogon; in HTML markup — the capital O in the name matters. Numeric forms and typing Ǫ in UTF-8 also work. For the lowercase letter, use &oogon; (ǫ).

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	`&Oogon;`	HTML markup (preferred)
Direct character	`Ǫ`	HTML text (UTF-8)
Hex entity	`Ǫ`	HTML markup
Decimal entity	`Ǫ`	HTML markup
CSS escape	`\01EA`	Stylesheet `content`
Lowercase (related)	ǫ (U+01EB)	Named `&oogon;`

When to Use Which

Situation	Use
Capital O with ogonek (Ǫ)	`&Oogon;` or type `Ǫ`
Lowercase o with ogonek (ǫ)	ǫ (`&oogon;`)
Capital O with ogonek and macron (Ǭ)	Ǭ
Capital A with ogonek (Ą)	Ą (`&Aogon;`)
Capital O with diaeresis (Ö)	Ö (`Ö`)
Generated text via `::before` / `::after`	`content: "\01EA"`

See it

Live Preview

Uppercase O ogonek rendered alone and next to related letters.

Large glyph Ǫ

Notation DǪÓ

Compared Ǫ | ǫ | Ǭ

Hint Compare: Ogonek Ǫ | Lower ǫ | Ogonek+macron Ǭ | Diaeresis Ö

With entities Named: &Oogon; | Hex: Ǫ | Decimal: Ǫ

Code

Complete HTML Example

One page that shows the letter with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Named + Hex + Decimal + CSS + Typed

Five ways to produce Ǫ, plus a short Navajo-style label.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Uppercase O Ogonek (Ǫ)</title>
  <style>
    #point::after {
      content: "\01EA";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &Oogon;</p>
  <p>Using Hex Code: &#x1EA;</p>
  <p>Using HTML Code: &#490;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: Ǫ</p>
  <p lang="nv">Label: D&Oogon;&#x00D3;</p>
</body>
</html>

Try It Yourself

How It Works

1. Named: &Oogon; (capital O) is the clearest HTML form for U+01EA. Lowercase &oogon; is a different character (ǫ).

2. Hex: U+01EA → Ǫ in HTML. Same glyph as the named entity.

3. Decimal: same code point as 490 → Ǫ. Same glyph as hex and named.

4. CSS: use \01EA in content (not an HTML entity). #point::after appends that Ǫ after the paragraph text.

5. Typed / label: paste Ǫ in UTF-8, or build short labels like D&Oogon;Ó with lang="nv" when the text is Navajo.

Pitfalls & Tips

Common mistakes when working with U+01EA.

Case

&Oogon; ≠ &oogon;

&Oogon; → Ǫ (capital). &oogon; → ǫ (lowercase). Entity names are case-sensitive.

vs Ǭ

Not ogonek + macron

Ǭ adds a macron above the ogonek letter. Plain ogonek Ǫ has no bar on top.

vs Ö

Not a diaeresis

Ö (Ö) is Ö. The ogonek sits under the letter — not two dots above.

vs Ą

Not A-ogonek

Polish Ą is &Aogon; (U+0104). Same diacritic idea, different base letter.

Encoding

Keep UTF-8 declared

Latin Extended-B letters display reliably with <meta charset="UTF-8">. Prefer named entities when encoding is uncertain.

CSS vs HTML

Do not mix escapes

\01EA belongs in CSS strings. &Oogon; / Ǫ / Ǫ belong in HTML.

A11y

Use real language context

When Ǫ appears in Navajo or other language text, keep surrounding text and lang accurate (for example lang="nv").

Compatibility

Browser Support

Uppercase O ogonek (U+01EA) and its entity forms (&Oogon;, Ǫ, Ǫ, CSS \\01EA) are supported in all mainstream browsers. Latin Extended-B glyphs are available in modern system fonts.

✓ Universal support

Uppercase O Ogonek (Ǫ)

Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.

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+01EA / &Oogon; Full support

Bottom line: Prefer &Oogon; (capital O) in HTML. Use \\01EA only inside CSS content. Do not confuse with &oogon; (ǫ) or ogonek+macron Ǭ.

Remember

Key Takeaways

Unicode: uppercase O ogonek is U+01EA (decimal 490) — glyph Ǫ.
HTML: prefer &Oogon; (capital O) — also Ǫ / Ǫ.
CSS: use \01EA inside content for generated text.
Meaning: Ǫ is capital ogonek — not ǫ (&oogon;), not Ǭ (ogonek+macron), not Ö (diaeresis).

One line: U+01EA → &Oogon; / Ǫ / Ǫ / CSS \01EA.

Frequently Asked Questions

How do I display Ǫ in HTML?

Use &Oogon; (named), Ǫ (hex), Ǫ (decimal), type Ǫ directly in UTF-8, or the CSS escape \01EA in content. Prefer &Oogon; in normal HTML.

What is the Unicode value for uppercase O ogonek?

U+01EA (LATIN CAPITAL LETTER O WITH OGONEK). Hex 1EA, decimal 490. It belongs to Latin Extended-B (U+0180–U+024F).

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

Yes. Use &Oogon; (capital O). Numeric forms Ǫ and Ǫ also work. Note: &oogon; (lowercase) is a different letter (ǫ).

Is Ǫ the same as ǫ or Ǭ?

No. Ǫ is U+01EA (&Oogon;, capital ogonek). ǫ is U+01EB (&oogon;). Ǭ is U+01EC (ogonek plus macron).

When should I use &Oogon;?

Use it for Navajo, historical Lithuanian, and linguistic text that needs capital Ǫ — not as a substitute for plain O, Ö, or Ǭ.

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

HTML entities (&Oogon;, Ǫ, or Ǫ) go in markup. The CSS escape \01EA goes in stylesheet strings (usually content on ::before/::after).

Did you know?

Uppercase O ogonek is Unicode U+01EA (decimal 490) — glyph Ǫ in Latin Extended-B (U+0180–U+024F). HTML5 names it &Oogon; (capital O). Official name: LATIN CAPITAL LETTER O WITH OGONEK. Lowercase is &oogon; (ǫ, U+01EB). The ogonek (“little tail”) marks a nasal vowel in Navajo and appears in historical Lithuanian and linguistic texts. Do not confuse with ogonek+macron Ǭ (U+01EC).

Next: Uppercase O Ogonek Macron

Learn the HTML entity for uppercase O with ogonek and macron (U+01EC).

Continue tutorial →

About the author

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)

8 people found this page helpful

HTML Entity | Uppercase O Middle Tilde HTML Entity | Uppercase O Ogonek Macron