HTML Entity for Identical To (≡)
What You'll Learn
How to display the Identical To symbol (≡) in HTML using hexadecimal, decimal, named entity, and CSS escape methods. The symbol denotes identity, equivalence, or congruence in mathematics and logic.
This character is U+2261 (IDENTICAL TO) in the Mathematical Operators block (U+2200–U+22FF). Render it with ≡, ≡, ≡, or CSS \2261.
⚡ Quick Reference — Identical To Entity
U+2261Mathematical Operators block
≡Hexadecimal reference
≡Decimal reference
≡Most readable option
Name Value
──────────── ──────────
Unicode U+2261
Hex code ≡
HTML code ≡
Named entity ≡
CSS code \2261
Meaning Identity / equivalence (math & logic)
CSS note \2261 or \02261 in content propertyComplete HTML Example
This example demonstrates the Identical To symbol (≡) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2261";
}
</style>
</head>
<body>
<p>Identical To using Hexadecimal: ≡</p>
<p>Identical To using Decimal: ≡</p>
<p>Identical To using Named Entity: ≡</p>
<p id="point">Identical To using CSS Entity: </p>
</body>
</html>🌐 Browser Support
The Identical To entity is universally supported in all modern browsers:
👀 Live Preview
See the Identical To symbol rendered live in different contexts:
🧠 How It Works
Hexadecimal Code
≡ uses the Unicode hexadecimal value 2261 to display the Identical To symbol. The x prefix indicates hexadecimal format.
Decimal HTML Code
≡ uses the decimal Unicode value 8801 to display the same character. This is one of the most commonly used methods.
CSS Entity
\2261 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Named Entity
≡ is the named entity for ≡—easy to remember and clear in source HTML.
Same visual result
All four methods produce the glyph: ≡. Unicode U+2261 is in Mathematical Operators. Next: Ij.
Use Cases
The Identical To symbol (≡) commonly appears in the following scenarios:
Identity or equivalence in algebra and calculus (e.g. f(x) ≡ 0).
Logical equivalence or identical truth values in formal logic.
Show two expressions or statements are identical by definition.
Modular arithmetic (e.g. a ≡ b (mod n)).
API specs and documentation for equivalence or identity.
Papers, textbooks, and educational material with proper math notation.
💡 Best Practices
Do
- Prefer
≡for readable source markup - Keep one method (named, hex, or decimal) consistent per document
- Use semantic HTML and
aria-labelfor standalone math symbols when needed - Provide context (e.g. “a ≡ b (mod n)”) in mixed content
- Test rendering across browsers and fonts
Don’t
- Put CSS escape
\2261in HTML text nodes - Confuse ≡ (identical to) with = (equals) or ≈ (almost equal)
- Mix entity styles randomly in one file
- Assume every font renders U+2261 clearly
- Skip UTF-8 (
<meta charset="utf-8">) on math-heavy pages
Key Takeaways
Four methods all render ≡
≡ ≡ ≡For CSS stylesheets, use the escape in the content property
\2261Unicode U+2261 belongs to the Mathematical Operators block (U+2200–U+22FF)
Prefer ≡ for readability in HTML source
Next: Ij
❓ Frequently Asked Questions
≡ (hex), ≡ (decimal), ≡ (named), or \2261 in CSS content. All produce ≡.U+2261 (IDENTICAL TO). Mathematical Operators block (U+2200–U+22FF). Hex 2261, decimal 8801. Named entity: ≡. Used for identity, equivalence, and congruence.≡ or ≡) go directly in markup. The CSS escape \2261 is used in stylesheets, typically in the content property of ::before or ::after. Same visual result, different layers of the stack.≡, ≡, and ≡ are equivalent in modern browsers and all render ≡.Explore More HTML Entities!
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