Lowercase u with horn (ư) is the Latin Extended-B character at Unicode U+01B0 (LATIN SMALL LETTER U WITH HORN). A horn (hook) attaches to the side of the letter. Essential in Vietnamese orthography. HTML5 defines no named entity for it.
Remember
Character ư
Unicode U+01B0
Named entity (none)
Hex entity ư
Decimal ư
CSS escape \01B0
All of these produce the same glyph: ư. Prefer a pasted ư in UTF-8 pages; use numeric or CSS forms when you need an escape.
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Direct character
ư
HTML text (UTF-8 default)
Named entity
none
Not defined in HTML5
Hex entity
ư
HTML markup
Decimal entity
ư
HTML markup
CSS escape
\01B0
Stylesheet content
When to Use Which
Situation
Use
Vietnamese / UTF-8 text
Type or paste ư
Numeric entity required
ư or ư
Generated text via ::before / ::after
content: "\01B0"
û (circumflex) instead
û (U+00FB) — different letter
Looking for a named form
None — use hex or decimal instead
See it
Live Preview
Lowercase u with horn rendered in common contexts.
Vietnamesethư, tương
Large glyphư
Case pairƯ ư
With entitiesHex: ư | Decimal: ư
Not the sameu (U+0075) · û (û)
Code
Complete HTML Example
One page that shows lowercase u with horn with hex, decimal, direct, and CSS forms. Use View Output or open the live editor.
Hex + Decimal + Direct + CSS
Four ways to produce ư in a single document (no named entity).
Using Hex Code: ư
Using HTML Code: ư
Using Direct Character: ư
Using CSS Entity: ư
How It Works
1. Hex:U+01B0 → ư in HTML. Reliable numeric form.
2. Decimal: same code point as 432 → ư. Same glyph.
3. Direct: paste ư in a UTF-8 file with <meta charset="UTF-8">.
4. CSS: use \01B0 in content (not an HTML entity). #point::after appends that ư after the paragraph text.
Pitfalls & Tips
Common mistakes when working with the u horn entity.
Named
No named entity
HTML5 has no &... name for U+01B0 — use hex or decimal instead.
CSS vs HTML
Do not mix escapes
\01B0 belongs in CSS. ư / ư belong in HTML.
Look-alikes
Not u or û
Plain u is U+0075; circumflex û is U+00FB. Horn is a side hook, not a top accent.
Case
ư vs Ư
Uppercase is U+01AF — a different code point from U+01B0.
Semicolon
End references
Always finish with ; — write ư, not ư.
UTF-8
Declare charset
If you paste ư directly, serve the page as UTF-8 with <meta charset="UTF-8">.
Compatibility
Browser Support
Lowercase u with horn (U+01B0) and its entity forms (ư, ư, CSS \\01B0) are supported in all mainstream browsers.
✓ Universal support
Lowercase U Horn (ư)
Paste ư, or encode with hex, decimal, or CSS escape — same glyph everywhere. No named entity.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+01B0 / entitiesFull support
Bottom line: Prefer a pasted ư in UTF-8 text. Use ư / ư when a numeric form is required, and \\01B0 only inside CSS content.
Remember
Key Takeaways
Unicode: u with horn is U+01B0 (decimal 432), Latin Extended-B.
HTML: no named entity — use ư or ư.
CSS: use \01B0 inside content for generated text.
Use: Vietnamese ư — not the same as plain u or û.
One line:U+01B0 → ư / ư / CSS \01B0 (no named entity).
Frequently Asked Questions
Use ư (hex), ư (decimal), type ư in UTF-8, or the CSS escape \01B0 in content. There is no HTML5 named entity for U+01B0.
U+01B0 (LATIN SMALL LETTER U WITH HORN). Hex 01B0, decimal 432. It belongs to Latin Extended-B and is a core Vietnamese vowel.
No. HTML5 does not define a named entity for this character. Use numeric references like ư or ư when you need an entity form.
Use it for Vietnamese text (thư, tương), linguistic examples, CSS-generated content, or when encoding must be explicit. Prefer a pasted ư in UTF-8 when possible.
HTML entities (ư or ư) go in markup. The CSS escape \01B0 is used in stylesheets (usually in the content property of ::before/::after). Both render ư.
Plain u is U+0075. û (U+00FB, û) has a circumflex. ư (U+01B0) has a horn (hook) on the side — a distinct Vietnamese letter. Do not substitute one for another.
🤔
Did you know?
Lowercase u with horn (ư) is Unicode U+01B0 (decimal 432) in Latin Extended-B. HTML5 has no named entity — use ư or ư. Essential in Vietnamese (thư, tương).
