HTML Entity for South West Double Arrow (⇙)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+21D9

What Is South West Double Arrow?

South west double arrow (⇙) is the Unicode character at U+21D9 in the Arrows block. Official name: SOUTH WEST DOUBLE ARROW. It is a double-line arrow pointing toward the south-west.

Remember
Character     ⇙
Unicode       U+21D9
Named entity  ⇙
Hex entity    ⇙
Decimal       ⇙
CSS escape    \21D9
Not the same  ↙ (↙) · ⇘ · ⇖

Prefer ⇙ (capital A) in HTML markup. You can also type ⇙ in UTF-8, or use numeric forms when needed. Watch the case: ↙ is the single-line arrow.

Quick Reference

One table for every form you will actually use.

FormCodeWhere it goes
Named entity⇙HTML markup (preferred)
Direct character⇙HTML text (UTF-8)
Hex entity⇙HTML markup
Decimal entity⇙HTML markup
CSS escape\21D9Stylesheet content
Single SW arrow (related)↙ (U+2199)Named ↙ (lowercase)

When to Use Which

SituationUse
Double-line south-west arrow⇙ or type ⇙
Single-line south-west arrow↙ (↙)
South-east double arrow⇘ (⇘)
North-west double arrow⇖
Generated text via ::before / ::aftercontent: "\21D9"

Live Preview

Double-line south-west arrow rendered alone and next to related arrows.

Large glyph ⇙
UI hint Fast scroll back ⇙
Single vs double ↙ (single)  |  ⇙ (double)
Diagonals ⇖ ⇗ ⇘ ⇙
With entities Named: ⇙ | Hex: ⇙ | Decimal: ⇙

Complete HTML Example

One page that shows the double arrow with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Named + Hex + Decimal + CSS + Typed

Five ways to produce ⇙, plus a comparison with the single-line SW arrow.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>SW Double Arrow (⇙) in HTML</title>
  <style>
    #point::after {
      content: "\21D9";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &swArr;</p>
  <p>Using Hex Code: &#x21D9;</p>
  <p>Using HTML Code: &#8665;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: ⇙</p>
  <p>Compare: Single &swarr; vs double &swArr;</p>
</body>
</html>
Try It Yourself

How It Works

1. Named: &swArr; (capital A) is the HTML5 name for U+21D9 → ⇙. Best default in markup.

2. Hex: U+21D9 → &#x21D9; in HTML. Same glyph as the named form.

3. Decimal: same code point as 8665 → &#8665;. Same result as hex and named.

4. CSS: use \21D9 in content (not an HTML entity). #point::after appends that ⇙ after the paragraph text.

5. Typed / compare: paste ⇙ in UTF-8, or contrast &swarr; (single) with &swArr; (double).

Pitfalls & Tips

Common mistakes when working with &swArr;.

Case

swArr vs swarr

&swArr; (capital A) is U+21D9 (⇙). &swarr; (lowercase) is U+2199 (↙). Easy to mix up.

vs ↙

Not the single-line arrow

Use &swArr; only when you want the double-line form. For a plain diagonal, use &swarr;.

vs ⇘

Not south-east double

⇘ (U+21D8, &seArr;) points south-east. Do not swap it with ⇙.

CSS vs HTML

Do not mix escapes

\21D9 belongs in CSS strings. &swArr; / &#x21D9; / &#8665; belong in HTML.

Semicolon

End named entities

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

A11y

Do not rely on the glyph alone

Add nearby text or an aria-label when the arrow is the only control label.

Browser Support

South west double arrow (U+21D9) and its entity forms (&swArr;, &#x21D9;, &#8665;, CSS \\21D9) are supported in all mainstream browsers. Visible glyphs depend on Arrows font coverage.

✓ Universal support

South West Double Arrow (&#x21D9;)

Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.

100% Browser coverage
Google Chrome Supported
Yes
Microsoft Edge Supported
Yes
Mozilla Firefox Supported
Yes
Apple Safari Supported
Yes
Opera Supported
Yes
Internet Explorer All versions
Yes
U+21D9 / entities Full support

Bottom line: Prefer &swArr; in HTML. Use &#x21D9; / &#8665; when numeric form is required, and \\21D9 only inside CSS content.

Key Takeaways

  • Unicode: south west double arrow is U+21D9 (decimal 8665) — glyph ⇙.
  • HTML: prefer &swArr; (capital A) — also &#x21D9; / &#8665; / type ⇙.
  • CSS: use \21D9 inside content for generated text.
  • Meaning: ⇙ is double-line — not &swarr; (↙).

One line: U+21D9 → &swArr; / &#x21D9; / &#8665; / CSS \21D9.

Frequently Asked Questions

Use &swArr; (named), &#x21D9; (hex), &#8665; (decimal), type ⇙ directly in UTF-8, or the CSS escape \21D9 in content. Prefer &swArr; in normal HTML.
U+21D9 (SOUTH WEST DOUBLE ARROW). Hex 21D9, decimal 8665. It belongs to the Arrows block (U+2190–U+21FF).
Yes. Use &swArr; (capital A). Numeric forms &#8665; and &#x21D9; also work. Do not confuse with &swarr; (lowercase), which is U+2199.
&swArr; is U+21D9 (⇙, double-line). &swarr; is U+2199 (↙, single-line). They are different characters — watch the capital A.
Use it when you need a double-line south-west arrow for stronger emphasis in navigation, UI, or diagrams. Pair the glyph with text for accessibility.
HTML entities (&swArr;, &#8665;, or &#x21D9;) go in markup. The CSS escape \21D9 goes in stylesheet strings (usually content on ::before/::after).

Did you know?

South west double arrow is Unicode U+21D9 (decimal 8665) — glyph ⇙ in the Arrows block (U+2190–U+21FF). HTML5 names it &swArr; (capital A). Official name: SOUTH WEST DOUBLE ARROW. Do not confuse with single-line south west arrow U+2199 (&swarr;, lowercase, ↙).

Next: Spacing Cedilla

Learn the HTML entity for spacing cedilla (U+00B8).

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

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