У is the Unicode character CYRILLIC CAPITAL LETTER U, code point U+0423 (decimal 1059) in the Cyrillic block, added in Unicode 1.1. In HTML write У, and in UTF-8 it is the 2 bytes D0 A3.
Codes
| Where | How to write it |
|---|---|
| Code point | U+0423 |
| Decimal | 1059 |
| UTF-8 bytes | D0 A3 |
| UTF-16 (big-endian) | 0423 |
| UTF-32 | 00000423 |
| HTML decimal | У |
| HTML hex | У |
| HTML named | У |
| CSS | \423 |
| JavaScript | \u0423 |
| JSON | \u0423 |
| Python | \u0423 |
| Python by name | \N{CYRILLIC CAPITAL LETTER U} |
| Java, C# | \u0423 |
| Rust, Swift | \u{423} |
| Go, C, C++ | \u0423 |
| URL (percent-encoded) | %D0%A3 |
JavaScript and JSON strings store text as UTF-16, so this character is one code unit long. Python 3 strings count code points, so its length there is 1.
Properties
| Property | Value |
|---|---|
| Name | CYRILLIC CAPITAL LETTER U |
| Code point | U+0423 (decimal 1059) |
| Block | Cyrillic (U+0400–U+04FF) |
| General category | Lu: Uppercase letter |
| Script | Cyrillic |
| Bidirectional class | L: Left-to-right |
| Mirrored in right-to-left text | No |
| First in Unicode version | 1.1 |
Upper and lower case
- у U+0443 Cyrillic Small Letter U — Lowercase
Nearby in Cyrillic
- Л U+041B Cyrillic Capital Letter El
- М U+041C Cyrillic Capital Letter Em
- Н U+041D Cyrillic Capital Letter En
- О U+041E Cyrillic Capital Letter O
- П U+041F Cyrillic Capital Letter Pe
- Р U+0420 Cyrillic Capital Letter Er
- С U+0421 Cyrillic Capital Letter Es
- Т U+0422 Cyrillic Capital Letter Te
- Ф U+0424 Cyrillic Capital Letter Ef
- Х U+0425 Cyrillic Capital Letter Ha
- Ц U+0426 Cyrillic Capital Letter Tse
- Ч U+0427 Cyrillic Capital Letter Che
- Ш U+0428 Cyrillic Capital Letter Sha
- Щ U+0429 Cyrillic Capital Letter Shcha
- Ъ U+042A Cyrillic Capital Letter Hard Sign
- Ы U+042B Cyrillic Capital Letter Yeru
All 256 characters: Cyrillic.
Official reference
Questions people ask
- What is the HTML code for У?
- Use the named entity У, or У (decimal) or У (hex).
- What is the UTF-8 encoding of U+0423?
- D0 A3 (hex), 2 bytes. In a URL it is %D0%A3.
- How do I write U+0423 in JavaScript or Python?
- JavaScript: \u0423. Python: \u0423.
Source
Unicode Character Database 18.0.0 (Unicode License v3); HTML entity names from the WHATWG HTML Standard (CC BY 4.0). The encodings above are computed from the code point and checked against Python's encoders. How the character looks depends on your fonts.
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