HTML Entity for Equals Colon (≕)
What You'll Learn
How to display the Equals Colon (≕) in HTML using hexadecimal, decimal, named entity, and CSS escape methods. This character is U+2255 (EQUALS COLON) in the Mathematical Operators block (U+2200–U+22FF)—an equals sign above a colon, used in proportion-style and specialized equality notation.
Render it with ≕, ≕, the named entity ≕, or CSS escape \2255. Do not confuse ≕ with colon equals (≔, ≔) or equal to by definition (≝, U+225D, no named entity).
⚡ Quick Reference — Equals Colon
U+2255Mathematical Operators
≕Hexadecimal reference
≕Decimal reference
≕Equals colon
Name Value
──────────── ──────────
Unicode U+2255
Hex code ≕
HTML code ≕
Named entity ≕
CSS code \2255
Related U+2254 = Colon equals (≔ ≔); U+225D = Equal to by definition (≝)Complete HTML Example
This example demonstrates the Equals Colon (≕) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point:after{
content: "\2255";
}
</style>
</head>
<body>
<p>Equals Colon using Hexadecimal: ≕</p>
<p>Equals Colon using HTML Code: ≕</p>
<p>Equals Colon using HTML Entity: ≕</p>
<p id="point">Equals Colon using CSS Entity: </p>
</body>
</html>🌐 Browser Support
The Equals Colon entity is universally supported in modern browsers:
👀 Live Preview
See the equals colon symbol (≕) compared with colon equals (≔) and ordinary equals (=):
≕ ≕ vs ≔ ≔≕ ≕🧠 How It Works
Hexadecimal Code
≕ uses the Unicode hexadecimal value 2255 to display this symbol. The x prefix indicates hexadecimal format.
Decimal HTML Code
≕ uses the decimal Unicode value 8789 to display the same character.
Named Entity
≕ is the semantic named entity for equals colon to—easiest to read in geometry markup.
CSS Entity
\2255 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Same visual result
All four methods produce the glyph: ≕. Unicode U+2255 in the Mathematical Operators block (U+2200–U+22FF).
Use Cases
The Equals Colon (≕) commonly appears in:
Ratio and proportion notation using equals colon.
Textbooks and courses covering specialized equality symbols.
Formal logic and mathematical definitions in technical writing.
Diagrams and specs with formal geometric notation.
Papers publishing correct operator symbols in HTML.
Math and geometry entity reference pages.
💡 Best Practices
Do
- Use
≕for readable math markup (U+2255) - Use
≔(≔) when colon-equals (assignment) is meant - Use math-friendly fonts for clear ≕ rendering
- Serve pages with UTF-8 (
<meta charset="utf-8">) - Add context when the symbol carries semantic meaning
Don’t
- Confuse ≕ (equals colon) with ≔ (colon equals) or ≝ (defined as)
- Use ≕ when simple equality (=) is sufficient
- Put CSS escape
\2255in HTML text nodes - Assume all fonts distinguish ≕, ≔, and = clearly
- Mix entity styles randomly in one file
Key Takeaways
Three HTML references plus CSS all render ≕
≕ ≕ ≕For CSS stylesheets, use the escape in the content property
\2255Unicode U+2255 — EQUALS COLON
≕ is the standard named entity
Colon equals is ≔ (≔, U+2254)
❓ Frequently Asked Questions
≕ (hex), ≕ (decimal), ≕ (named), or \2255 in CSS content. All produce ≕.U+2255 (EQUALS COLON). Mathematical Operators block (U+2200–U+22FF). Hex 2255, decimal 8789.≕ renders ≕ (U+2255, equals colon). ≔ renders ≔ (U+2254, colon equals). They are different characters with different meanings.≕, ≕, or ≕) go directly in markup. The CSS escape \2255 is used in stylesheets, typically in the content property of pseudo-elements. Same visual result, different layers of the stack.Explore More HTML Entities!
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