U+FF7A "コ" Halfwidth Katakana Letter Ko Unicode Character
Unicode Version 17.0
コ
U+FF7A "コ" Halfwidth Katakana Letter Ko is a typographic variant of the standard fullwidth Katakana character コ, which represents the Japanese mora "ko" and is part of the Japanese writing system. It belongs to the halfwidth form block in Unicode, designed for compatibility with older computer systems and text formats that required a fixed character width, such as terminal displays or early digital text. This halfwidth version occupies a single character cell horizontally, unlike its fullwidth counterpart, making it useful in certain legacy contexts like CJK (Chinese, Japanese, and Korean) character encoding or for aligning text in monospaced environments.
General Properties
| Code Point | U+FF7A |
| Version Added | 1.1 |
| Name | Halfwidth Katakana Letter Ko |
| Block | Halfwidth and Fullwidth Forms |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Narrow |
| Decomposition Mapping | "コ" U+30B3 Katakana Letter Ko |
Encodings
| HTML Decimal Encoding | コ |
| HTML Hex Encoding | コ |
| UTF-8 Encoding | 0xEF 0xBD 0xBA |
| UTF-16 Encoding | 0xFF7A |
| UTF-32 Encoding | 0x0000FF7A |
| C/C++/Java Escape | \uff7a |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Halfwidth |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "コ" U+30B3 Katakana Letter Ko |
| NFKC Simple Casefold | "コ" U+30B3 Katakana Letter Ko |
| Script | Katakana |
| Script Extensions | Katakana |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Katakana |
| Sentence Break | OLetter |