U+FF1A "：" Fullwidth Colon Unicode Character

U+FF1A "：" Fullwidth Colon is a typographic variant of the standard ASCII colon, occupying the same width as a CJK (Chinese, Japanese, and Korean) character, which is typically twice the width of a standard Latin character. It is encoded in the Unicode block “Halfwidth and Fullwidth Forms,” specifically designed to align with the monospaced grid used in East Asian scripts like Chinese, Japanese, and Korean. This fullwidth colon is commonly used in formal writing, time notation, and punctuation within East Asian text environments to maintain visual consistency and proper spacing alongside other fullwidth characters.

General Properties

Code Point	U+FF1A
Version Added	1.1
Name	Fullwidth Colon
Block	Halfwidth and Fullwidth Forms
General Category	Other Punctuation
Canonical Combining Class	Not Reordered
Bidirectional Class	Common Separator
Decomposition Type	Wide
Decomposition Mapping	":" U+003A Colon

Encodings

HTML Decimal Encoding	：
HTML Hex Encoding	：
UTF-8 Encoding	0xEF 0xBC 0x9A
UTF-16 Encoding	0xFF1A
UTF-32 Encoding	0x0000FF1A
C/C++/Java Escape	\uff1a

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Nonstarter
East Asian Width	Fullwidth
Case Ignorable	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	":" U+003A Colon
NFKC Simple Casefold	":" U+003A Colon
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Terminal Punctuation	Yes
Vertical Orientation	Transformed Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Mid Letter
Sentence Break	SContinue