Complement
Reach for ∁ in equations, formulas and technical writing, where a plain keyboard falls short. It is cataloged at Unicode code point U+2201 in the math set, so it renders the same real text character in every app that supports the font, not a pasted image.
| Symbol | ∁ | |
|---|---|---|
| Unicode | U+2201 | |
| Name | Complement | |
| HTML (decimal) | ∁ | |
| HTML (hex) | ∁ | |
| CSS content | \2201 | |
| JavaScript / JSON | \u2201 | |
| UTF-8 bytes | 0xE2 0x88 0x81 | |
| UTF-16 units | 0x2201 |
How to type the complement symbol
- Copy and paste: click the ∁ at the top of this page, then paste with Ctrl+V (Windows) or Cmd+V (Mac). This is the fastest route on any device.
- HTML: write
∁in your markup. - CSS: use
content: "\2201"in a::beforeor::afterrule. - JavaScript: the escape
\u2201produces this character in a string.
Frequently asked questions
How do I copy the complement symbol?
Click the ∁ above or the copy button and it is placed on your clipboard. Paste it anywhere with Ctrl+V or Cmd+V. It is a real text character, so it works in documents, chats and code.
What is the Unicode code point for complement?
The complement has the Unicode code point U+2201. In HTML you can write it as ∁ or ∁.
Can I use the complement symbol in HTML and CSS?
Yes. In HTML write ∁, and in CSS use content: "\2201" inside a ::before or ::after rule. The code table on this page has copy buttons for both.
Related symbols
Browse the full math symbols hub, or return to the searchable symbol grid.