Right Half Ring Below is the combining diacritic at Unicode U+0339 (COMBINING RIGHT HALF RING BELOW). It sits below a base letter — used in phonetic and linguistic transcription (e.g. a̹).
Remember
Mark combining right half ring below
Unicode U+0339
Hex entity ̹
Decimal ̹
CSS escape \0339
Named entity (none)
Order base letter + mark → a̹
Combining marks are not standalone letters. Write the base character first, then the entity (e.g. a̹ → a̹).
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Hex entity
̹
HTML after the base letter
Decimal entity
̹
HTML after the base letter
CSS escape
\0339
Stylesheet content (often ::after)
Direct character
base + U+0339
UTF-8 HTML text
Named entity
—
Not defined in HTML5
When to Use Which
Situation
Use
Need an entity in HTML source
a̹ or a̹
Generated mark via ::after
content: "\0339" on an element that ends with the base letter
Using Hex Code: a̹
Using HTML Code: a̹
Using CSS Entity: a̹
Typed directly: a̹
How It Works
1. Hex:U+0339 → ̹ after the base letter. The browser combines them into a̹.
2. Decimal: same code point as 825 → ̹. Same result as hex.
3. CSS: use \0339 in content (not an HTML entity). #point::after appends the mark below the letter a.
4. Typed: in UTF-8 you can type the base letter and the combining mark directly — same visual result.
Pitfalls & Tips
Common mistakes when working with combining Right Half Ring Below.
Order
Base letter first
Write a̹, not ̹a. Combining marks follow the base.
Named?
No named entity
HTML5 does not define a named entity for U+0339. Use numeric forms.
Position
Below ≠ above
Right half ring above is U+0357. Left half ring below is U+031C. Pick the code your chart requires.
A11y
Explain the mark
Screen readers may skip or misname combining marks. Add a note or aria-label when the diacritic carries meaning.
CSS vs HTML
Do not mix escapes
\0339 belongs in CSS. ̹ / ̹ belong in HTML after the base letter.
Fonts
Diacritic coverage
Some fonts omit U+0339. Prefer Charis SIL, Noto Sans, or another phonetics-capable face.
Compatibility
Browser Support
Right Half Ring Below (U+0339) and its entity forms (̹, ̹, CSS \\0339) are supported in modern browsers when the font includes Combining Diacritical Marks.
✓ Universal encoding
Right Half Ring Below (U+0339)
Encode with hex, decimal, or CSS escape after a base letter — same combining mark when the font supports U+0339. No named HTML entity.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
OperaSupported
Yes
Apple SafariSupported
Yes
Internet ExplorerAll versions
Yes
U+0339Full support
Bottom line: Use a̹ or a̹ in HTML. Use \\0339 only inside CSS content. Always put the base letter first.
Remember
Key Takeaways
Unicode: this mark is U+0339 (decimal 825).
HTML: use a̹ or a̹ — no named entity.
CSS: use \0339 inside content (often on ::after).
Watch out: base letter first; U+0339 ≠ U+0357 (above) ≠ U+031C (left below).
One line: base + U+0339 → a̹ / a̹ / CSS \0339.
Frequently Asked Questions
Use ̹ (hex), ̹ (decimal), or the CSS escape \0339 in the content property. There is no named HTML entity. Place the mark immediately after the base letter (e.g. a̹).
U+0339 (COMBINING RIGHT HALF RING BELOW). Hex 0339, decimal 825. It belongs to the Combining Diacritical Marks block.
No. HTML5 does not define a named entity for this combining mark. Use numeric references like ̹ or ̹.
Use it in phonetic and linguistic transcription when you need a right half-ring diacritic below a letter. Always write base letter first, then the combining mark.
HTML entities (̹ or ̹) go in markup after the base character. The CSS escape \0339 is used in stylesheets (usually in the content property of ::after). Both apply the combining mark below the letter.
U+0339 sits below the base letter and opens toward the right. U+0357 is the same idea above the letter. U+031C is COMBINING LEFT HALF RING BELOW — a different opening direction under the letter.
🤔
Did you know?
Right Half Ring Below is Unicode U+0339 (decimal 825) — COMBINING RIGHT HALF RING BELOW. HTML5 has no named entity. Place it after the base letter (e.g. a̹). Do not confuse it with Left Half Ring Below (U+031C) or Right Half Ring Above (U+0357).
