U+21B6

Anticlockwise top semicircle arrow↶

Anticlockwise top semicircle arrow is a monochrome text character from the Unicode Arrows block, listed here under Arrows: Heavy & Decorative. 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 "arrow", "undo", "rotate".

Quick facts

Unicode
U+21B6
Decimal
8630
Hex
0x21B6
Octal
0o20666

Unicode identity

FormatValueCopy
Code pointOfficial Unicode notationU+21B6
Official nameUnicodeData.txt, Unicode 18.0.0ANTICLOCKWISE TOP SEMICIRCLE ARROW
DecimalBase 108630
HexadecimalBase 160x21B6
OctalBase 80o20666
BinaryBase 20010000110110110
General categorySymbol, otherSo
Unicode blockU+2190–U+21FFArrows
PlaneBasic Multilingual Plane (BMP, Plane 0)

HTML & CSS

FormatValueCopy
HTML entity (decimal)↶
HTML entity (hex)↶
CSS content escapeUse inside content: "…"\21B6
URL encodedPercent-encoded UTF-8%E2%86%B6

Programming languages

FormatValueCopy
JavaScript / TypeScript\u21B6
JSONUTF-16 surrogate pairs\u21B6
Python\u21B6
Java / C# / Kotlin\u21B6

Byte encodings

FormatValueCopy
UTF-83 bytesE2 86 B6
UTF-16 (BE)21B6
UTF-32 (BE)000021B6

How to type Anticlockwise top semicircle arrow

  • Windows

    Hold Alt and type +21B6 with the hex numeric keypad option enabled, or type 21B6 then press Alt+X in Word and most Office apps.

  • macOS

    Enable the Unicode Hex Input keyboard, hold Option, and type 21B6. Or open Character Viewer (Control+Command+Space) and search "Anticlockwise top semicircle arrow".

  • Linux

    Press Ctrl+Shift+U, type 21b6, 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: ↶ in HTML, \21B6 in CSS, and \u21B6 in JavaScript.

Official Unicode reference

Character name
ANTICLOCKWISE TOP SEMICIRCLE ARROW
Block
Arrows (U+2190–U+21FF)
General category
So — Symbol, other

Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Arrows block: U2190.pdf (PDF, unicode.org).

Frequently asked questions

How do I copy the Anticlockwise top semicircle arrow symbol?

Click the Copy button at the top of this page, or select ↶ 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 Anticlockwise top semicircle arrow?

Anticlockwise top semicircle arrow is U+21B6 (decimal 8630, hexadecimal 0x21B6, octal 0o20666). It lives in the Arrows block (U+2190–U+21FF) of the Basic Multilingual Plane (BMP, Plane 0).

What is the official Unicode name of Anticlockwise top semicircle arrow?

The Unicode Standard (version 18.0.0) names this character "ANTICLOCKWISE TOP SEMICIRCLE ARROW". Its General_Category is So (Symbol, other).

What is the HTML code for Anticlockwise top semicircle arrow?

Use ↶ or ↶. In CSS, use content: "\21B6".

How do I type Anticlockwise top semicircle arrow in code?

JavaScript: "\u21B6". Python: "\u21B6". JSON and Java: "\u21B6". The UTF-8 byte sequence is E2 86 B6.

Is Anticlockwise top semicircle arrow an emoji?

No. Anticlockwise top semicircle arrow 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.

Related symbols in Arrows: Heavy & Decorative

View all arrows: heavy & decorative