HTML Entity for Long Left Right Arrow (⟷)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+27F7

What Is the Long Left Right Arrow Entity?

Long Left Right Arrow (⟷) is the Supplemental Arrows-A character at Unicode U+27F7 (LONG LEFT RIGHT ARROW). It is a long bidirectional arrow used for equivalence, toggles, and two-way navigation.

Remember
Character     ⟷
Unicode       U+27F7
Hex entity    ⟷
Decimal       ⟷
Named entity  ⟷ · ⟷ · ⟷
CSS escape    \27F7
Not the same  ↔ (↔) · ⟺ (⟺)

Named, hex, decimal, CSS, and a typed character all produce the same glyph: ⟷. Prefer ⟷ in HTML source for clarity. Case is significant: ⟷ ≠ ⟺.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Named entity⟷HTML markup (best default)
Named aliases⟷ / ⟷HTML markup (same glyph)
Hex entity⟷HTML markup
Decimal entity⟷HTML markup
CSS escape\27F7Stylesheet content
Direct character⟷UTF-8 HTML text

When to Use Which

SituationUse
Readable arrow HTML source⟷
Need a numeric entity in HTML⟷ or ⟷
Generated text via ::before / ::aftercontent: "\27F7"
Standard short left-right arrow (↔)Use ↔ (U+2194)
Long left-right double arrow (⟺)Use ⟺ (U+27FA)

Live Preview

Long Left Right Arrow in common UI and math contexts.

Toggle A ⟷ B
Large glyph ⟷
Named entity ⟷ → ⟷
vs ↔ / ⟺ ⟷  |  ↔  |  ⟺
With entities Named: ⟷ | Hex: ⟷ | Decimal: ⟷

Complete HTML Example

One page that shows this symbol with named, hex, decimal, and CSS forms. Use View Output or open the live editor.

Named + Hex + Decimal + CSS

Four ways to produce ⟷ in a single document.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Long Left Right Arrow (⟷)</title>
  <style>
    #point::after {
      content: "\27F7";
    }
  </style>
</head>
<body>
  <p>Using Hex Code: &#x27F7;</p>
  <p>Using HTML Code: &#10231;</p>
  <p>Using Named Entity: &xharr;</p>
  <p id="point">Using CSS Entity: </p>
  <p><code>A &xharr; B</code></p>
</body>
</html>
Try It Yourself

How It Works

1. Named: &xharr; (aliases &longleftrightarrow;, &LongLeftRightArrow;) is the clearest HTML form and renders ⟷.

2. Hex: U+27F7 → &#x27F7; in HTML. Same result as the named entity.

3. Decimal: same code point as 10231 → &#10231;. Same result as hex.

4. CSS: use \27F7 in content (not an HTML entity). #point::after appends that ⟷ after the paragraph text.

Pitfalls & Tips

Common mistakes when working with Long Left Right Arrow.

Length

⟷ ≠ ↔

The standard left-right arrow (&harr;, U+2194) is shorter. Use U+27F7 only when you need the long form.

Case

&xharr; ≠ &xhArr;

Capital A selects the long double form (U+27FA). Lowercase &xharr; is the single long left-right arrow (U+27F7).

Aliases

Three named forms

&xharr;, &longleftrightarrow;, and &LongLeftRightArrow; all map to U+27F7. Prefer one style consistently.

CSS vs HTML

Do not mix escapes

\27F7 belongs in CSS. &xharr; / &#x27F7; / &#10231; belong in HTML.

A11y

Add nearby words

Pair the glyph with labels (for example A &xharr; B) or use aria-label when it stands alone.

Semicolon

End references

Always finish with ; — write &xharr;, not &xharr.

Browser Support

Long Left Right Arrow (U+27F7) and its entity forms (&xharr;, &longleftrightarrow;, &LongLeftRightArrow;, &#x27F7;, &#10231;, CSS \\27F7) are supported in all modern browsers.

✓ Universal encoding

Long Left Right Arrow (&#x27F7;)

Encode with named, hex, decimal, or CSS escape — or type ⟷ directly in UTF-8 HTML.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer IE 9+
Yes*
U+27F7 Full support

Bottom line: Prefer &xharr; for readable HTML. Use \\27F7 only inside CSS content.

Key Takeaways

  • Unicode: this symbol is U+27F7 (decimal 10231).
  • HTML: prefer &xharr; — or use &#x27F7; / &#10231;.
  • CSS: use \27F7 inside content for generated text.
  • Watch out: &xharr; ≠ &harr; ≠ &xhArr; (double).

One line: U+27F7 → &xharr; / &#x27F7; / &#10231; / CSS \27F7.

Frequently Asked Questions

Use &xharr;, &longleftrightarrow;, or &LongLeftRightArrow; (named), &#x27F7; (hex), &#10231; (decimal), or the CSS escape \27F7 in the content property. All render ⟷.
U+27F7 (LONG LEFT RIGHT ARROW). Hex 27F7, decimal 10231. It belongs to Supplemental Arrows-A (U+27F0–U+27FF).
Yes. &xharr;, &longleftrightarrow;, and &LongLeftRightArrow; are named HTML5 entities for ⟷ and are supported in all modern browsers.
Use it for bidirectional navigation, equivalence, toggle UI, and diagrams that need a longer left-right arrow than &harr;. Prefer &xharr; for readable source.
HTML entities (&xharr;, &#10231;, or &#x27F7;) go in markup. The CSS escape \27F7 is used in stylesheets (usually in the content property of ::before/::after). Both render ⟷.
No. ↔ is the standard left-right arrow (&harr;, U+2194). ⟷ (U+27F7) is the longer form. Case also matters: &xhArr; is the long double form (U+27FA).

Did you know?

Long Left Right Arrow is Unicode U+27F7 (decimal 10231) — LONG LEFT RIGHT ARROW in Supplemental Arrows-A. HTML5 provides &xharr;, &longleftrightarrow;, and &LongLeftRightArrow; — all render ⟷. Prefer &xharr; for readable source. It is longer than the standard left-right arrow &harr; (↔, U+2194).

Next: Long Left Right Double Arrow

Learn the HTML entity for Long Left Right Double Arrow — next in this sequence.

Continue tutorial →

About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

8 people found this page helpful