U+1F17E "🅾" Negative Squared Latin Capital Letter O Unicode Character

Unicode Version 17.0

🅾

U+1F17E "🅾" Negative Squared Latin Capital Letter O is a symbolic character primarily used as an ideographic symbol in Japanese signage and user interfaces, where it represents the word "open" or indicates an available or operating status, particularly in the context of business hours or service availability. It belongs to the "Enclosed Alphanumeric Supplement" block, which includes various letters and numbers enclosed in circles or squares for compatibility with legacy Japanese text encoding standards like Shift JIS. The character features a bold white capital letter O set within a solid black square, giving it a distinct visual contrast that makes it suitable for clear labeling in maps, menus, or electronic displays. Its Unicode designation as "negative squared" refers to this inverted color scheme, where the letter appears in light on a dark background, differentiating it from the more common positive (white background) squared variants.

General Properties

Code Point U+1F17E
Version Added 6.0
Name Negative Squared Latin Capital Letter O
Block Enclosed Alphanumeric Supplement
General Category Other Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right

Encodings

HTML Decimal Encoding 🅾
HTML Hex Encoding 🅾
UTF-8 Encoding 0xF0 0x9F 0x85 0xBE
UTF-16 Encoding 0xD83C 0xDD7E
UTF-32 Encoding 0x0001F17E
C/C++/Java Escape \ud83c\udd7e

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Ambiguous (Alphabetic or Ideographic)
East Asian Width Ambiguous
Uppercase Yes
Other Uppercase Yes
Cased Yes
Script Common
Script Extensions Common
Indic Syllabic Category Other
Alphabetic Yes
Other Alphabetic Yes
Vertical Orientation Upright
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Alphabetic letter
Sentence Break Upper
Emoji Yes
Extended Pictographic Yes