Uppercase O middle tilde (Ɵ) is the Unicode character at U+019F in Latin Extended-B. Official name: LATIN CAPITAL LETTER O WITH MIDDLE TILDE — a capital O with a tilde-like bar through the middle, used in some African orthographies and linguistic text.
Remember
Character Ɵ
Unicode U+019F
Hex entity Ɵ
Decimal Ɵ
CSS escape \019F
Named entity (none)
Not the same Õ · Θ · Ø
Prefer Ɵ or Ɵ in HTML markup. You can also type Ɵ in UTF-8. There is no named entity. The usual lowercase counterpart is barred o at U+0275 (ɵ).
Using Hex Code: Ɵ
Using HTML Code: Ɵ
Using CSS Entity: Ɵ
Typed directly: Ɵ
Not Õ (tilde above) or Θ (Greek theta)
How It Works
1. Hex:U+019F → Ɵ in HTML. The browser turns it into Ɵ.
2. Decimal: same code point as 415 → Ɵ. Same result as hex.
3. CSS: use \019F in content (not an HTML entity). #point::after appends that Ɵ after the paragraph text.
4. Typed / compare: paste Ɵ in UTF-8. Keep Õ (tilde above) and Greek Θ as separate characters.
Pitfalls & Tips
Common mistakes when working with U+019F.
Named?
No named entity
HTML5 does not define a named entity for U+019F. Use Ɵ or Ɵ.
vs Õ
Not a tilde above
Õ (Õ) puts the tilde on top. Ɵ puts the mark through the middle of O.
vs Θ
Not Greek theta
Greek capital theta Θ (U+0398) can look similar in some fonts. Use U+019F only for the Latin letter.
vs Ø
Not O slash
Ø (Ø) is Danish/Norwegian Ø with a diagonal stroke — a different letter.
CSS vs HTML
Do not mix escapes
\019F belongs in CSS strings. Ɵ / Ɵ belong in HTML.
Fonts
Extended Latin coverage
Some UI fonts omit U+019F. Prefer a font with solid Latin Extended-B coverage if the glyph is missing.
Compatibility
Browser Support
Uppercase O middle tilde (U+019F) and its entity forms (Ɵ, Ɵ, CSS \\019F) are supported in all mainstream browsers. Visible glyphs depend on Latin Extended-B font coverage.
✓ Universal support
Uppercase O Middle Tilde (Ɵ)
Encode with hex, decimal, CSS escape, or type the character — 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 ExplorerIE 9+
Yes
U+019F / entitiesFull support
Bottom line: Prefer Ɵ or Ɵ in HTML. Use \\019F only inside CSS content. There is no named entity. Do not confuse with Õ (Õ) or Greek Θ.
Remember
Key Takeaways
Unicode: uppercase O middle tilde is U+019F (decimal 415) — glyph Ɵ.
HTML: use Ɵ or Ɵ — no named entity; typing Ɵ also works.
Use Ɵ (hex), Ɵ (decimal), type Ɵ directly in UTF-8, or the CSS escape \019F in content. There is no named HTML entity for U+019F.
U+019F (LATIN CAPITAL LETTER O WITH MIDDLE TILDE). Hex 019F, decimal 415. It belongs to Latin Extended-B (U+0180–U+024F).
No. HTML5 does not define a named entity for this character. Use numeric forms Ɵ or Ɵ.
No. Ɵ is O with a middle tilde through the letter (U+019F). Õ is O with tilde above (Õ, U+00D5). Θ is Greek capital theta (U+0398).
Use it in African orthographies, linguistic text, or typography that needs capital O with a middle tilde as one precomposed letter — not as a substitute for Õ or Greek Θ.
HTML entities (Ɵ or Ɵ) go in markup. The CSS escape \019F goes in stylesheet strings (usually content on ::before/::after).
🤔
Did you know?
Uppercase O middle tilde (Ɵ) is Unicode U+019F (decimal 415) — LATIN CAPITAL LETTER O WITH MIDDLE TILDE in Latin Extended-B. HTML5 has no named entity — use Ɵ or Ɵ. Its lowercase counterpart is usually U+0275 (ɵ, barred o). Do not confuse with tilde-above Õ (Õ) or Greek capital theta Θ (U+0398).
