U+25ED · Other symbol
LaTeX
\triangleleftblack
Up-Pointing Triangle With Left Half Black Symbol ◭
◭ is up-pointing triangle with left half black, U+25ED — \triangleleftblack in LaTeX. It was added in Unicode 1.1, and Unicode files it under Other symbol.
Also known as
Unicode 1.0 called this character up pointing triangle with left half black. The standard renamed it later, but documents, fonts and font-editing tools from that era still use the old name.
Codes & technical data
| Unicode | U+25ED | |
|---|---|---|
| HTML hex | ◭ | |
| HTML decimal | ◭ | |
| CSS | \25ED | |
| JavaScript | \u{25ED} | |
| Python | \U000025ED | |
| Java / C# | \u25ED | |
| Rust | \u{25ed} | |
| Swift | \u{25ED} | |
| PHP | \u{25ED} | |
| URL encoded | %E2%97%AD | |
| UTF-8 bytes | E2 97 AD | |
| UTF-16 bytes | 25ED | |
| Base64 | 4pet | |
| Decimal | 9709 | |
| LaTeX | \triangleleftblack | |
| Category | Other symbol (So) | |
| Introduced | Unicode 1.1 | |
Will ◭ survive being pasted?
- Normalisation. Yes. ◭ is unchanged by NFKC, so it survives normalising systems intact.
- Legacy encodings. ◭ is Unicode-only — it has no Latin-1 equivalent, so a system stuck on an 8-bit encoding cannot represent it.
- Size. 3 bytes in UTF-8. Character-limited fields — SMS, bios, some form validators — usually count bytes, not characters.
Other half characters
Unicode names 10 characters ending in “half”. They differ by direction, weight or decoration rather than by meaning.
Nearby in Geometric Shapes
Circles, squares, triangles and diamonds in filled and outlined forms, at several sizes. The bullet characters most lists use come from here.
How to type ◭
| Windows | Type 25ED then press Alt+X |
|---|---|
| macOS | Press Ctrl+Cmd+Space, then search for “up-pointing triangle with left half black” |
| Linux | Press Ctrl+Shift+U, type 25ed, press Enter |
| HTML | ◭ |
About Unicode’s Other symbol category
Unicode files this under "other symbol" — the catch-all for pictographs, signs and marks that are neither maths, currency, nor letter-like. It is the largest symbol category in the standard.
Frequently asked questions
- How do I type the ◭ up-pointing triangle with left half black symbol?
- On Windows, type 25ED and press Alt+X. On Linux press Ctrl+Shift+U then 25ed. On any system the quickest route is the copy button on this page.
- What is the code for ◭?
- Up-Pointing Triangle With Left Half Black is U+25ED and in LaTeX as \triangleleftblack. In UTF-8 it takes 3 bytes. The table above lists every escape format.
- What kind of character is ◭?
- Up-Pointing Triangle With Left Half Black is filed under Other symbol in the Geometric Shapes block, and was introduced in Unicode 1.1. Unicode files this under "other symbol" — the catch-all for pictographs, signs and marks that are neither maths, currency, nor letter-like. It is the largest symbol category in the standard.