Double acute accent is the Unicode character at U+030B in the Combining Diacritical Marks block. Official name: COMBINING DOUBLE ACUTE ACCENT. It attaches above the previous base letter — for example ő → ő. Typographers often call it hungarumlaut (used in Hungarian on ő and ű).
Remember
Mark (combining ̋)
Unicode U+030B
Hex entity ̋
Decimal ̋
CSS escape \030B
Named entity (none)
Prefer when ő ű (precomposed) exist
Prefer ̋ or ̋ immediately after the base letter (no named form for U+030B). For Hungarian, prefer precomposed ő and ű when available.
Combining double acute rendered on base letters and precomposed Hungarian forms.
Built with U+030Bő ű
Precomposedő ű Ő Ű
Large glyphő
Comparedő é ˝ ő
With entitiesHex: ő | Decimal: ű
Code
Complete HTML Example
One page that shows Double Acute Accent with hex, decimal, CSS escape, a typed combining form, and precomposed Hungarian letters. Use View Output or open the live editor.
Hex + Decimal + CSS + Typed + Precomposed
Ways to build ő / ű and the preferred precomposed ő / ű.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Double Acute Accent (U+030B) in HTML</title>
<style>
#point::after {
content: "o\030B";
}
</style>
</head>
<body>
<p>Built with Hex: ő</p>
<p>Built with Decimal: ű</p>
<p id="point">Built with CSS: </p>
<p>Typed: ő ű</p>
<p>Precomposed (preferred): ő ű</p>
<p>Hungarian: sző — tű</p>
</body>
</html>
Built with Hex: ő
Built with Decimal: ű
Built with CSS: ő
Typed: ő ű
Precomposed (preferred): ő ű
Hungarian: sző — tű
How It Works
1. Hex: write the base letter, then ̋ → ő. Preferred when there is no named entity for U+030B.
2. Decimal: same code point as 779 → ̋ after the base letter. Same result as hex.
3. CSS: use \030B in content after a letter in the string (not an HTML entity). #point::after appends ő.
4. Typed: paste the combining mark after o or u in a UTF-8 document.
5. Precomposed: for Hungarian, prefer ő and ű when those characters exist.
Pitfalls & Tips
Common mistakes when working with Double Acute Accent.
Order
Base letter first
Write ő, not ̋o. Combining marks attach to the previous character.
HU
Prefer precomposed when possible
For Hungarian, type őű instead of building with U+030B when those letters exist.
́
Not single acute
U+0301 is combining acute (one mark). U+030B is double acute (two marks).
˝
Not ˝
˝ is the spacing mark U+02DD (˝). It does not combine with a letter the way U+030B does.
CSS vs HTML
Do not mix escapes
\030B belongs in CSS strings. ̋ / ̋ belong in HTML after a base letter.
Fonts
Diacritic font coverage
Some fonts omit U+030B. Prefer a font with Combining Diacritical Marks (and Latin Extended) coverage for display.
Compatibility
Browser Support
Combining double acute accent (U+030B) and its entity forms (̋, ̋, CSS \\030B) are supported in all mainstream browsers. Visible positioning depends on font diacritic coverage.
✓ Universal support
Double Acute Accent (U+030B)
Encode with hex, decimal, CSS escape, or type the combining mark after a letter — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+030B / entitiesFull support
Bottom line: Prefer ̋ after a base letter (no named form for U+030B), or precomposed Hungarian ő/ű when available. Use \\030B only inside CSS content.
Remember
Key Takeaways
Unicode: combining double acute is U+030B (decimal 779).
HTML: no named entity for U+030B — use base + ̋ / ̋, or type ő/ű when available.
CSS: use a letter + \030B inside content.
Meaning: hungarumlaut combining mark — not single acute U+0301 or spacing ˝.
One line:U+030B → base + ̋ / ̋ / CSS \030B (or type ő/ű when available).
Frequently Asked Questions
Place ̋ (hex) or ̋ (decimal) after a base letter, type the combining mark in UTF-8 after a letter, or use CSS \030B in content after a letter. There is no named HTML entity for U+030B.
U+030B (COMBINING DOUBLE ACUTE ACCENT). Hex 030B, decimal 779. It belongs to the Combining Diacritical Marks block (U+0300–U+036F).
No. Use numeric forms ̋ or ̋ after a base character. The spacing double acute ˝ uses ˝ (U+02DD) — a different character.
Prefer precomposed Hungarian letters ő and ű (and Ő Ű) for everyday text. Use combining U+030B when you need a letter with no precomposed form, or when building diacritics dynamically.
HTML entities (̋ or ̋) go in markup after a base letter. The CSS escape \030B goes in stylesheet strings (usually content on ::before/::after, after a letter in the string).
No. U+030B is combining double acute. U+0301 is combining acute (single). ˝ is the spacing double acute U+02DD (˝), not a combining mark.
🤔
Did you know?
Double acute accent is Unicode U+030B (decimal 779) — a combining mark in the Combining Diacritical Marks block. There is no HTML5 named entity for U+030B; use ̋ or ̋ after a base letter (e.g. ő → ő). For Hungarian, prefer precomposed ő and ű. The spacing mark ˝ is U+02DD (˝).
