U+301A "〚" Left White Square Bracket Unicode Character

U+301A "〚" Left White Square Bracket is a punctuation mark used primarily in East Asian typography, particularly in Chinese, Japanese, and Korean writing systems. It resembles an open bracket but with a distinctive white, hollowed appearance, often employed alongside its matching right counterpart U+301B to enclose text, indicate quotations, or mark off specific sections in formal or decorative contexts. This character is part of the CJK Symbols and Punctuation block and is historically derived from traditional bracket forms used to denote vertical text layout or annotation in classical documents, though it also appears in modern digital texts for stylistic emphasis or to signal boundaries in specialized notation.

General Properties

Code Point	U+301A
Version Added	1.1
Name	Left White Square Bracket
Unicode 1.0 Name	Opening White Square Bracket
Block	CJK Symbols and Punctuation
General Category	Open Punctuation
Canonical Combining Class	Not Reordered
Bidirectional Class	Other Neutral
Mirrored	Yes
Mirrored Character	"〛" U+301B Right White Square Bracket
Bidirectional Paired Bracket Type	Open
Bidirectional Paired Bracket	"〛" U+301B Right White Square Bracket

Encodings

HTML Decimal Encoding	〚
HTML Hex Encoding	〚
UTF-8 Encoding	0xE3 0x80 0x9A
UTF-16 Encoding	0x301A
UTF-32 Encoding	0x0000301A
C/C++/Java Escape	\u301a

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	Open Punctuation
East Asian Width	Wide
Script	Common
Script Extensions	Bopomofo Hangul Han Hiragana Katakana Yi
Indic Syllabic Category	Other
Pattern Syntax	Yes
Vertical Orientation	Transformed Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Close