About Black Upper Right Triangle
Black Upper Right Triangle is the Unicode character ◥ at codepoint U+25E5 in the Geometric Shapes block of the Basic Multilingual Plane (BMP).
Reference
The four corner triangles are not encoded in the order anyone would guess. Read the codepoints in sequence and you get lower right at U+25E2, lower left at U+25E3, upper left at U+25E4, and upper right — this one — at U+25E5. That is anticlockwise starting from the bottom right: not clockwise, not top-left first, not any order a layout would suggest. Loop over the range to build a set of corner glyphs and they arrive shuffled unless you map them deliberately.
Its shaded counterpart is 🮝 U+1FB9D, UPPER RIGHT TRIANGULAR MEDIUM SHADE, which the standard cross-references from here; that one landed in Unicode 13.0, twenty-seven years after this character, in the Symbols for Legacy Computing block. Same corner, dithered instead of solid.
Typical uses
- Upper-right corner fills and folded-corner marks
- Diagonal splits in terminal and text-mode graphics
- Ribbon and badge corners assembled without images
Where it sits in the standard
- Geometric Shapes block, general category Other Symbol
- In Unicode since version 1.1; not an emoji character
- Math entity urtrif, described there as "upper right triangle, filled"
Developer Notes
| Unicode Codepoint | |
| Decimal | |
| UTF-8 (hex) | |
| UTF-16 (hex) | |
| HEX Entity | |
| HTML Entity | |
| CSS (\xxxx) | |
| JavaScript | |
| Python |
How to Use Black Upper Right Triangle
To use the Black Upper Right Triangle symbol (◥) in HTML, insert the
entity ◥ directly into your markup. The decimal entity ◥ works in any HTML-serialised document.
In CSS pseudo-elements use content: '\25E5';.
In JavaScript and TypeScript the escape '\u25E5' evaluates to ◥. In Python source, write '\u25E5'.
The character encodes to E2 97 A5 as UTF-8 bytes and 25E5 as UTF-16 code units. Its decimal codepoint is 9701.
This is a text-based Unicode character. It will render in the current font on most platforms. If a font lacks this glyph, the browser may show a placeholder or fall back to a system font.