U+1F131 "🄱" Squared Latin Capital Letter B Unicode Character

Unicode Version 17.0

🄱

U+1F131 "🄱" Squared Latin Capital Letter B is a typographic symbol that represents the letter B enclosed within a square, a design commonly used for labeling, cataloging, or identifying items such as batteries, vitamin types, or parts in a legend. It belongs to the Enclosed Alphanumerics Supplement block, which standardized a range of squared and circled letters and numbers for compatibility with older character sets and for use in applications like product labeling or user interface icons. This specific character is distinct from a plain B because its squared form signals a specific classification or function, often found in contexts where visual clarity and compact reference are important, such as in diagrams or technical documentation.

General Properties

Code Point U+1F131
Version Added 5.2
Name Squared Latin Capital Letter B
Block Enclosed Alphanumeric Supplement
General Category Other Symbol
Canonical Combining Class Not Reordered
Bidirectional Class Left To Right
Decomposition Type Square
Decomposition Mapping "B" U+0042 Latin Capital Letter B

Encodings

HTML Decimal Encoding 🄱
HTML Hex Encoding 🄱
UTF-8 Encoding 0xF0 0x9F 0x84 0xB1
UTF-16 Encoding 0xD83C 0xDD31
UTF-32 Encoding 0x0001F131
C/C++/Java Escape \ud83c\udd31

Unicode Properties

NFC Quick Check Yes
NFD 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
Changes When NFKC Casefolded Yes
NFKC Casefold "b" U+0062 Latin Small Letter B
NFKC Simple Casefold "b" U+0062 Latin Small Letter B
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