U+0031
Digit One1
Digit One is a monochrome text character from the Unicode Basic Latin block, listed here under Basic Latin (ASCII). Copy it with one click, or use the hex, octal, decimal and HTML entity codes below to embed it in web pages, code, and documents. It is often searched for as "number", "digit", "numeral", "ascii".
Quick facts
- Unicode
- U+0031
- Decimal
- 49
- Hex
- 0x0031
- Octal
- 0o61
Unicode identity
| Format | Value | Copy |
|---|---|---|
| Code pointOfficial Unicode notation | U+0031 | |
| Official nameUnicodeData.txt, Unicode 18.0.0 | DIGIT ONE | |
| DecimalBase 10 | 49 | |
| HexadecimalBase 16 | 0x0031 | |
| OctalBase 8 | 0o61 | |
| BinaryBase 2 | 0000000000110001 | |
| General categoryNumber, decimal digit | Nd | |
| Unicode blockU+0000–U+007F | Basic Latin | |
| Plane | Basic Multilingual Plane (BMP, Plane 0) |
HTML & CSS
| Format | Value | Copy |
|---|---|---|
| HTML entity (decimal) | 1 | |
| HTML entity (hex) | 1 | |
| CSS content escapeUse inside content: "…" | \0031 | |
| URL encodedPercent-encoded UTF-8 | 1 |
Programming languages
| Format | Value | Copy |
|---|---|---|
| JavaScript / TypeScript | \u0031 | |
| JSONUTF-16 surrogate pairs | \u0031 | |
| Python | \u0031 | |
| Java / C# / Kotlin | \u0031 |
Byte encodings
| Format | Value | Copy |
|---|---|---|
| UTF-81 byte | 31 | |
| UTF-16 (BE) | 0031 | |
| UTF-32 (BE) | 00000031 |
How to type Digit One
Windows
Hold Alt and type +31 with the hex numeric keypad option enabled, or type 31 then press Alt+X in Word and most Office apps.
macOS
Enable the Unicode Hex Input keyboard, hold Option, and type 0031. Or open Character Viewer (Control+Command+Space) and search "Digit One".
Linux
Press Ctrl+Shift+U, type 31, then press Space or Enter in GTK apps. IBus and most terminals support the same sequence.
HTML, CSS & code
Paste the character directly, or use the escapes above: 1 in HTML, \0031 in CSS, and \u0031 in JavaScript.
Official Unicode reference
- Character name
- DIGIT ONE
- Block
- Basic Latin (U+0000–U+007F)
- General category
- Nd — Number, decimal digit
Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Basic Latin block: U0000.pdf (PDF, unicode.org).
Frequently asked questions
How do I copy the Digit One symbol?
Click the Copy button at the top of this page, or select 1 and press Ctrl+C (Cmd+C on Mac). It is plain Unicode text, so it pastes into documents, chats, code, and design tools.
What is the Unicode code point for Digit One?
Digit One is U+0031 (decimal 49, hexadecimal 0x0031, octal 0o61). It lives in the Basic Latin block (U+0000–U+007F) of the Basic Multilingual Plane (BMP, Plane 0).
What is the official Unicode name of Digit One?
The Unicode Standard (version 18.0.0) names this character "DIGIT ONE". Its General_Category is Nd (Number, decimal digit).
What is the HTML code for Digit One?
Use 1 or 1. In CSS, use content: "\0031".
How do I type Digit One in code?
JavaScript: "\u0031". Python: "\u0031". JSON and Java: "\u0031". The UTF-8 byte sequence is 31.
Is Digit One an emoji?
No. Digit One is a text symbol and renders as a monochrome glyph in the current font. Some platforms may offer an emoji variant when U+FE0F is appended.