HTML Entity for South East Double Arrow (⇘)

Beginner
5 min read
Updated: Sep 2026
1 example
Unicode U+21D8

What Is South East Double Arrow?

South east double arrow (⇘) is the Unicode character at U+21D8 in the Arrows block. Official name: SOUTH EAST DOUBLE ARROW. It is a double-line arrow pointing toward the south-east.

Remember
Character     ⇘
Unicode       U+21D8
Named entity  ⇘
Hex entity    ⇘
Decimal       ⇘
CSS escape    \21D8
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\21D8Stylesheet content
Single SE arrow (related)↘ (U+2198)Named ↘ (lowercase)

When to Use Which

SituationUse
Double-line south-east arrow⇘ or type ⇘
Single-line south-east arrow↘ (↘)
North-east double arrow⇗
South-west double arrow⇙
Generated text via ::before / ::aftercontent: "\21D8"

Live Preview

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

Large glyph ⇘
UI hint Fast scroll down ⇘
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 SE arrow.

html
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>SE Double Arrow (⇘) in HTML</title>
  <style>
    #point::after {
      content: "\21D8";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &seArr;</p>
  <p>Using Hex Code: &#x21D8;</p>
  <p>Using HTML Code: &#8664;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: ⇘</p>
  <p>Compare: Single &searr; vs double &seArr;</p>
</body>
</html>
Try It Yourself

How It Works

1. Named: &seArr; (capital A) is the HTML5 name for U+21D8 → ⇘. Best default in markup.

2. Hex: U+21D8 → &#x21D8; in HTML. Same glyph as the named form.

3. Decimal: same code point as 8664 → &#8664;. Same result as hex and named.

4. CSS: use \21D8 in content (not an HTML entity). #point::after appends that ⇘ after the paragraph text.

5. Typed / compare: paste ⇘ in UTF-8, or contrast &searr; (single) with &seArr; (double).

Pitfalls & Tips

Common mistakes when working with &seArr;.

Case

seArr vs searr

&seArr; (capital A) is U+21D8 (⇘). &searr; (lowercase) is U+2198 (↘). Easy to mix up.

vs ↘

Not the single-line arrow

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

vs ⇙

Not south-west double

⇙ (U+21D9) points south-west. Do not swap it with ⇘.

CSS vs HTML

Do not mix escapes

\21D8 belongs in CSS strings. &seArr; / &#x21D8; / &#8664; belong in HTML.

Semicolon

End named entities

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

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 east double arrow (U+21D8) and its entity forms (&seArr;, &#x21D8;, &#8664;, CSS \\21D8) are supported in all mainstream browsers. Visible glyphs depend on Arrows font coverage.

✓ Universal support

South East Double Arrow (&#x21D8;)

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+21D8 / entities Full support

Bottom line: Prefer &seArr; in HTML. Use &#x21D8; / &#8664; when numeric form is required, and \\21D8 only inside CSS content.

Key Takeaways

  • Unicode: south east double arrow is U+21D8 (decimal 8664) — glyph ⇘.
  • HTML: prefer &seArr; (capital A) — also &#x21D8; / &#8664; / type ⇘.
  • CSS: use \21D8 inside content for generated text.
  • Meaning: ⇘ is double-line — not &searr; (↘).

One line: U+21D8 → &seArr; / &#x21D8; / &#8664; / CSS \21D8.

Frequently Asked Questions

Use &seArr; (named), &#x21D8; (hex), &#8664; (decimal), type ⇘ directly in UTF-8, or the CSS escape \21D8 in content. Prefer &seArr; in normal HTML.
U+21D8 (SOUTH EAST DOUBLE ARROW). Hex 21D8, decimal 8664. It belongs to the Arrows block (U+2190–U+21FF).
Yes. Use &seArr; (capital A). Numeric forms &#8664; and &#x21D8; also work. Do not confuse with &searr; (lowercase), which is U+2198.
&seArr; is U+21D8 (⇘, double-line). &searr; is U+2198 (↘, single-line). They are different characters — watch the capital A.
Use it when you need a double-line south-east arrow for stronger emphasis in navigation, UI, or diagrams. Pair the glyph with text for accessibility.
HTML entities (&seArr;, &#8664;, or &#x21D8;) go in markup. The CSS escape \21D8 goes in stylesheet strings (usually content on ::before/::after).

Did you know?

South east double arrow is Unicode U+21D8 (decimal 8664) — glyph ⇘ in the Arrows block (U+2190–U+21FF). HTML5 names it &seArr; (capital A). Official name: SOUTH EAST DOUBLE ARROW. Do not confuse with single-line south east arrow U+2198 (&searr;, lowercase, ↘).

Next: South West Arrow

Learn the HTML entity for south west arrow (U+2199).

South West Arrow 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.

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