HTML Entity for Uppercase O Tilde (Õ)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+00D5

HTML Entity for uppercase O tilde (U+00D5) tutorial illustration

Definition

What Is Uppercase O Tilde?

Uppercase O tilde (Õ) is the Unicode character at U+00D5 in Latin-1 Supplement. Official name: LATIN CAPITAL LETTER O WITH TILDE — a capital O with a tilde above, used for nasal vowels in Portuguese and as a letter in Estonian.

Remember

Character     Õ
Unicode       U+00D5
Named entity  &Otilde;  (capital O)
Hex entity    &#xD5;
Decimal       &#213;
CSS escape    \00D5
Not the same  õ · Ɵ · Ñ

Prefer Õ in HTML markup — the capital O in the name matters. Numeric forms and typing Õ in UTF-8 also work. For the lowercase letter, use õ (õ).

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	`Õ`	HTML markup (preferred)
Direct character	`Õ`	HTML text (UTF-8)
Hex entity	`Õ`	HTML markup
Decimal entity	`Õ`	HTML markup
CSS escape	`\00D5`	Stylesheet `content`
Lowercase (related)	õ (U+00F5)	Named `õ`

When to Use Which

Situation	Use
Capital O with tilde (Õ)	`Õ` or type `Õ`
Lowercase o with tilde (õ)	õ (`õ`)
Capital O with tilde and macron (Ȭ)	Ȭ
Capital O with middle tilde (Ɵ)	Ɵ
Capital N with tilde (Ñ)	Ñ (`Ñ`)
Generated text via `::before` / `::after`	`content: "\00D5"`

See it

Live Preview

Uppercase O tilde rendered alone and next to related letters.

Large glyph Õ

Notation PÕE

Compared Õ | õ | Ñ | Ɵ

Hint Compare: Above Õ | Lower õ | N-tilde Ñ | Middle Ɵ

With entities Named: Õ | Hex: Õ | Decimal: Õ

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 Õ, plus a short Portuguese word.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Uppercase O Tilde (Õ)</title>
  <style>
    #point::after {
      content: "\00D5";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &Otilde;</p>
  <p>Using Hex Code: &#xD5;</p>
  <p>Using HTML Code: &#213;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: Õ</p>
  <p lang="pt">Portuguese: P&Otilde;E</p>
</body>
</html>

Try It Yourself

How It Works

1. Named: Õ (capital O) is the clearest HTML form for U+00D5. Lowercase õ is a different character (õ).

2. Hex: U+00D5 → Õ in HTML. Same glyph as the named entity.

3. Decimal: same code point as 213 → Õ. Same glyph as hex and named.

4. CSS: use \00D5 in content (not an HTML entity). #point::after appends that Õ after the paragraph text.

5. Typed / word: paste Õ in UTF-8, or write PÕE with lang="pt".

Pitfalls & Tips

Common mistakes when working with U+00D5.

Case

Õ ≠ õ

Õ → Õ (capital). õ → õ (lowercase). Entity names are case-sensitive.

vs Ɵ

Not a middle tilde

Ɵ has a tilde-like bar through the middle. Õ has the tilde above the letter.

vs Ñ

Not N-tilde

Ñ (Ñ) is Spanish Ñ. Same diacritic idea, different base letter.

vs Ö

Not a diaeresis

Ö (Ö) is Ö with two dots. Õ uses a wavy tilde.

Encoding

Keep UTF-8 declared

Latin-1 letters display reliably with <meta charset="UTF-8">. Prefer named entities when encoding is uncertain.

CSS vs HTML

Do not mix escapes

\00D5 belongs in CSS strings. Õ / Õ / Õ belong in HTML.

A11y

Use real language context

When Õ appears in Portuguese or Estonian words, keep surrounding text and lang accurate (for example lang="pt" or lang="et").

Compatibility

Browser Support

Uppercase O tilde (U+00D5) and its entity forms (Õ, Õ, Õ, CSS \\00D5) are supported in all mainstream browsers. Latin-1 glyphs are standard in system fonts.

✓ Universal support

Uppercase O Tilde (Õ)

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+00D5 / Õ Full support

Bottom line: Prefer Õ (capital O) in HTML. Use \\00D5 only inside CSS content. Do not confuse with õ (õ) or middle-tilde Ɵ.

Remember

Key Takeaways

Unicode: uppercase O tilde is U+00D5 (decimal 213) — glyph Õ.
HTML: prefer Õ (capital O) — also Õ / Õ.
CSS: use \00D5 inside content for generated text.
Meaning: Õ is capital tilde above — not õ (õ), not Ɵ (middle), not Ñ (Ñ).

One line: U+00D5 → Õ / Õ / Õ / CSS \00D5.

Frequently Asked Questions

How do I display Õ in HTML?

Use Õ (named), Õ (hex), Õ (decimal), type Õ directly in UTF-8, or the CSS escape \00D5 in content. Prefer Õ in normal HTML.

What is the Unicode value for uppercase O tilde?

U+00D5 (LATIN CAPITAL LETTER O WITH TILDE). Hex D5, decimal 213. It belongs to Latin-1 Supplement (U+0080–U+00FF).

Is there a named HTML entity for U+00D5?

Yes. Use Õ (capital O). Numeric forms Õ and Õ also work. Note: õ (lowercase) is a different letter (õ).

Is Õ the same as õ or Ɵ?

No. Õ is U+00D5 (Õ, capital tilde above). õ is U+00F5 (õ). Ɵ is O with middle tilde (U+019F).

When should I use Õ?

Use it for Portuguese, Estonian, and other text that needs capital Õ — for example PÕE or ÕUN — not as a substitute for Ñ or middle-tilde Ɵ.

What is the difference between HTML code and CSS entity for U+00D5?

HTML entities (Õ, Õ, or Õ) go in markup. The CSS escape \00D5 goes in stylesheet strings (usually content on ::before/::after).

Did you know?

Uppercase O tilde is Unicode U+00D5 (decimal 213) — glyph Õ in Latin-1 Supplement (U+0080–U+00FF). HTML5 names it Õ (capital O). Official name: LATIN CAPITAL LETTER O WITH TILDE. Lowercase is õ (õ, U+00F5). Common in Portuguese (nasal vowels) and Estonian. Do not confuse with middle-tilde Ɵ (U+019F) or N-tilde Ñ (Ñ).

Next: Uppercase O Tilde Macron

Learn the HTML entity for uppercase O with tilde and macron (U+022C).

Continue tutorial →

About the author

Mari Selvan M P 🔗

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Experience 12 years building web and cloud systems
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