This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. U+1F7E4 offers a line break opportunity at its position, except in some numeric contexts.
The CLDR project calls this character “brown circle” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: brown, circle.
This character is designated as an emoji. It will be rendered as colorful emoji on conforming platforms. To reduce it to a monochrome character, you can combine it with Variation Selector-15: 🟤︎ See the Emojipedia for more details on this character’s emoji properties.
The Wikipedia has the following information about this codepoint:
Circle symbol may refer to (in ascending order of size, approximately):
˚, ring diacritic
◦, white bullet
∘, function composition
°, degree symbol
º, masculine ordinal indicator
o, music symbol denoting either a diminished triad or diminished seventh chord
o, superscript lowercase letter o
○, white circle Unicode symbol
◌, dotted circle
oοо, lowercase vowel letters in the Latin, Greek (omicron), and Cyrillic alphabets
𐤏, Semitic/Phoenician letter Ayin, the ancestor of the Greek, Latin, Cyrillic etc. letters
OΟО, uppercase vowel letters in the Latin, Greek, and Cyrillic alphabets
⭘, heavy circle Unicode symbol
◯, O mark, large circle Unicode symbol
Representations
System
Representation (click value to copy)
Nº
128996
UTF-8
F0 9F 9F A4
UTF-16
D8 3D DF E4
UTF-32
00 01 F7 E4
URL-Quoted
%F0%9F%9F%A4
HTML hex reference
🟤
Wrong windows-1252 Mojibake
🟤
Encoding: GB18030 (hex bytes)
95 30 AF 30
RFC 5137
\u'1F7E4'
Bash and Zsh inside echo -e
\U0001F7E4
C and C++
\U0001F7E4
C#
\U0001F7E4
CSS
\01F7E4
Excel
=UNICHAR(128996)
Go
\U0001F7E4
JavaScript
\uD83D\uDFE4
Modern JavaScript since ES6
\u{1f7e4}
JSON
\uD83D\uDFE4
Java
\uD83D\uDFE4
Lua
\u{1F7E4}
Matlab
char(128996)
Perl
"\x{1F7E4}"
PHP
\u{1f7e4}
PostgreSQL
U&'\+01F7E4'
PowerShell
`u{1F7E4}
Python
\U0001F7E4
Ruby
\u{1f7e4}
Rust
\u{1f7e4}
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