What ⬟ means
⬟ is the black pentagon. Unicode classifies it as an “other symbol” — Unicode's shelf for signs that are neither maths, money nor punctuation and files it in the Miscellaneous Symbols and Arrows block; this site shelves it under Stars & signs.
Its appearance depends on the font and text styling.
How it is encoded
⬟ is a single code point, U+2B1F. In HTML that is ⬟, and in CSS \2B1F.
Don't confuse it with
4Questions people ask
1Why does ⬟ show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type ⬟
Windows (Word)
Alt+XType 2B1F, then Alt+X to get ⬟.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “black pentagon”.
Linux
Ctrl+Shift+UType 2b1f, then Enter or Space.
HTML
⬟CSS
\2B1FCodes and encoding1 code points
HTML decimal
⬟
HTML hex
⬟
CSS content
content: "\2B1F";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E2%AC%9F
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.