Lowercase u with diaeresis and macron (ǖ) is the Latin Extended-B character at Unicode U+01D6 (LATIN SMALL LETTER U WITH DIAERESIS AND MACRON). It stacks two dots and a macron on u. In Hanyu Pinyin it marks the first tone on ü. HTML5 defines no named entity for it.
Remember
Character ǖ
Unicode U+01D6
Named entity (none)
Hex entity ǖ
Decimal ǖ
CSS escape \01D6
All of these produce the same glyph: ǖ. Prefer a pasted ǖ 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
ǖ
HTML text (UTF-8 default)
Named entity
none
Not defined in HTML5
Hex entity
ǖ
HTML markup
Decimal entity
ǖ
HTML markup
CSS escape
\01D6
Stylesheet content
When to Use Which
Situation
Use
Pinyin / UTF-8 text
Type or paste ǖ
Numeric entity required
ǖ or ǖ
Generated text via ::before / ::after
content: "\01D6"
Plain ü without tone mark
ü (U+00FC) — see Related Topics
Looking for a named form
None — use hex or decimal instead
See it
Live Preview
Lowercase u with diaeresis and macron rendered in common contexts.
Pinyin tonesǖ ǘ ǚ ǜ
Large glyphǖ
Case pairǕ ǖ
With entitiesHex: ǖ | Decimal: ǖ
Not the sameü (ü) · ǘ (tone 2)
Code
Complete HTML Example
One page that shows lowercase u with diaeresis and macron with hex, decimal, direct, and CSS forms. Use View Output or open the live editor.
Hex + Decimal + Direct + CSS
Four ways to produce ǖ in a single document (no named entity).
Using Hex Code: ǖ
Using HTML Code: ǖ
Using Direct Character: ǖ
Using CSS Entity: ǖ
How It Works
1. Hex:U+01D6 → ǖ in HTML. Reliable numeric form.
2. Decimal: same code point as 470 → ǖ. Same glyph.
3. Direct: paste ǖ in a UTF-8 file with <meta charset="UTF-8">.
4. CSS: use \01D6 in content (not an HTML entity). #point::after appends that ǖ after the paragraph text.
Pitfalls & Tips
Common mistakes when working with the u diaeresis macron entity.
Named
No named entity
HTML5 has no &... name for U+01D6 — use hex or decimal instead.
CSS vs HTML
Do not mix escapes
\01D6 belongs in CSS. ǖ / ǖ belong in HTML.
Look-alikes
Not ü or other tones
Umlaut ü is U+00FC. Tones 2–4 are ǘ, ǚ, ǜ. This letter is tone 1 (macron on ü).
Case
ǖ vs Ǖ
Uppercase is U+01D5 — a different code point from U+01D6.
Semicolon
End references
Always finish with ; — write ǖ, not ǖ.
UTF-8
Declare charset
If you paste ǖ directly, serve the page as UTF-8 with <meta charset="UTF-8">.
Compatibility
Browser Support
Lowercase u with diaeresis and macron (U+01D6) and its entity forms (ǖ, ǖ, CSS \\01D6) are supported in all mainstream browsers.
✓ Universal support
Lowercase U Diaeresis Macron (ǖ)
Paste ǖ, 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+01D6 / entitiesFull support
Bottom line: Prefer a pasted ǖ in UTF-8 text. Use ǖ / ǖ when a numeric form is required, and \\01D6 only inside CSS content.
Remember
Key Takeaways
Unicode: u with diaeresis and macron is U+01D6 (decimal 470), Latin Extended-B.
HTML: no named entity — use ǖ or ǖ.
CSS: use \01D6 inside content for generated text.
Use: Pinyin first tone on ü — not the same as plain ü or tones 2–4.
One line:U+01D6 → ǖ / ǖ / CSS \01D6 (no named entity).
Frequently Asked Questions
Use ǖ (hex), ǖ (decimal), type ǖ in UTF-8, or the CSS escape \01D6 in content. There is no HTML5 named entity for U+01D6.
U+01D6 (LATIN SMALL LETTER U WITH DIAERESIS AND MACRON). Hex 01D6, decimal 470. It belongs to Latin Extended-B and marks Pinyin first tone on ü.
No. HTML5 does not define a named entity for this character. Use numeric references like ǖ or ǖ when you need an entity form.
Use it for Hanyu Pinyin first-tone ü, linguistic examples, CSS-generated content, or when encoding must be explicit. Prefer a pasted ǖ in UTF-8 when possible.
HTML entities (ǖ or ǖ) go in markup. The CSS escape \01D6 is used in stylesheets (usually in the content property of ::before/::after). Both render ǖ.
Plain ü is U+00FC (ü). Tone 1 is U+01D6 (ǖ), tone 2 is U+01D8 (ǘ), tone 3 is U+01DA (ǚ), tone 4 is U+01DC (ǜ). Each is a different precomposed letter.
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Did you know?
Lowercase u with diaeresis and macron (ǖ) is Unicode U+01D6 (decimal 470) in Latin Extended-B. HTML5 has no named entity — use ǖ or ǖ. In Hanyu Pinyin it marks the first tone on ü.
