HTML Entity for Down Double Arrow (⇓)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+21D3

HTML Entity for down double arrow (U+21D3) tutorial illustration

Definition

What Is Down Double Arrow?

Down double arrow (⇓) is the Unicode character at U+21D3 in the Arrows block. Official name: DOWNWARDS DOUBLE ARROW. It is a double-lined down arrow — useful for emphatic direction, sort-descending cues, and math-style notation.

Remember

Character     ⇓
Unicode       U+21D3
Named entity  &dArr;
Hex entity    &#x21D3;
Decimal       &#8659;
CSS escape    \21D3
Not the same  ↓ (&darr;) · ↡ (&Darr;) · ⇣

Prefer &dArr; in HTML markup (also aliased as &Downarrow; / &DoubleDownArrow;). You can also type ⇓ in UTF-8, or use numeric forms when needed.

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	`&dArr;`	HTML markup (preferred)
Alias names	`&Downarrow;` / `&DoubleDownArrow;`	HTML markup (same glyph)
Direct character	`⇓`	HTML text (UTF-8)
Hex entity	`⇓`	HTML markup
Decimal entity	`⇓`	HTML markup
CSS escape	`\21D3`	Stylesheet `content`
Plain down (related)	`↓` (↓, U+2193)	Single solid down — not the same

When to Use Which

Situation	Use
Double down arrow	`&dArr;` or type `⇓`
Plain solid down arrow	`↓`
Up / left / right double	`&uArr;` · `⇐` · `⇒`
Dashed down arrow	U+21E3 (⇣)
Generated text via `::before` / `::after`	`content: "\21D3"`

See it

Live Preview

Down double arrow rendered alone, in a label, and compared with related arrows.

Glyph ⇓

Large glyph ⇓

UI label Sort ⇓

Compared ⇓ ↓ ⇑ ⇐ ⇒ ⇣

With entities Named: ⇓ | Hex: ⇓ | Decimal: ⇓

Code

Complete HTML Example

One page that shows Down 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 display ⇓ in HTML and CSS.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Down Double Arrow (U+21D3) in HTML</title>
  <style>
    #point::after {
      content: "\21D3";
    }
  </style>
</head>
<body>
  <p>Built with Named: &dArr;</p>
  <p>Built with Hex: &#x21D3;</p>
  <p>Built with Decimal: &#8659;</p>
  <p id="point">Built with CSS: </p>
  <p>Typed: ⇓</p>
  <p>Label: Sort &dArr;</p>
</body>
</html>

Try It Yourself

How It Works

1. Named: &dArr; is the preferred HTML5 name for U+21D3 → ⇓.

2. Hex / decimal: ⇓ and ⇓ insert the same code point.

3. CSS: use \21D3 in content (not an HTML entity). #point::after appends ⇓.

4. Typed: paste ⇓ in a UTF-8 document, or pair it with a label like Sort &dArr;.

Pitfalls & Tips

Common mistakes when working with Down Double Arrow.

Case

Watch ↓ vs &dArr;

↓ is ↓ (U+2193). &dArr; is ⇓ (U+21D3). Entity names are case-sensitive.

↡

Not &Darr;

&Darr; is the two-headed down arrow (U+21A1). That is not the double arrow.

⇟

Not double-stroke

U+21DF is down arrow with double stroke (⇟). U+21D3 is a double-lined shaft (⇓).

CSS vs HTML

Do not mix escapes

\21D3 belongs in CSS strings. &dArr; / ⇓ belong in HTML.

Fonts

Arrow font coverage

Some fonts omit double-arrow glyphs. Prefer a font with solid Arrows-block coverage.

a11y

Add accessible text

A lone double arrow can be unclear to screen readers. Pair it with visible text or an aria-label.

Semicolon

End references

Always finish entities with ; — write &dArr;, not &dArr.

Compatibility

Browser Support

Down double arrow (U+21D3) and its entity forms (&dArr;, ⇓, ⇓, CSS \\21D3) are supported in all mainstream browsers. Visible glyphs depend on Arrows-block font coverage.

✓ Universal support

Down Double Arrow (⇓)

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+21D3 / &dArr; Full support

Bottom line: Prefer &dArr; in HTML. Use ⇓ / ⇓ when numeric form is required, and \\21D3 only inside CSS content.

Remember

Key Takeaways

Unicode: down double arrow is U+21D3 (decimal 8659) — glyph ⇓.
HTML: prefer &dArr; (aliases &Downarrow; / &DoubleDownArrow;).
CSS: use \21D3 inside content for generated text.
Case: &dArr; ≠ ↓ ≠ &Darr;.

One line: U+21D3 → &dArr; / ⇓ / CSS \21D3.

Frequently Asked Questions

How do I display ⇓ in HTML?

Use &dArr; (named), ⇓ (hex), ⇓ (decimal), type ⇓ directly in UTF-8, or the CSS escape \21D3 in content. Prefer &dArr; in normal HTML.

What is the Unicode value for this mark?

U+21D3 (DOWNWARDS DOUBLE ARROW). Hex 21D3, decimal 8659. It belongs to the Arrows block (U+2190–U+21FF).

Is there a named HTML entity for U+21D3?

Yes. Use &dArr; or the aliases &Downarrow; and &DoubleDownArrow;. Numeric forms ⇓ and ⇓ also work. Do not use ↓ — that is the plain down arrow U+2193.

When should I use U+21D3?

Use it for emphatic down cues, sort-descending emphasis, and logic or math-style double arrows. Prefer ↓ for a plain solid down arrow, and U+21E3 for a dashed down arrow.

What is the difference between HTML code and CSS entity for U+21D3?

HTML entities (&dArr;, ⇓, or ⇓) go in markup. The CSS escape \21D3 goes in stylesheet strings (usually content on ::before/::after).

Is &dArr; the same as ↓ or &Darr;?

No. &dArr; is ⇓ (U+21D3). ↓ is ↓ (U+2193). &Darr; is ↡ (U+21A1, two-headed). Entity names are case-sensitive.

Did you know?

Down double arrow is Unicode U+21D3 (decimal 8659) — glyph ⇓ (DOWNWARDS DOUBLE ARROW) in the Arrows block. HTML5 names it &dArr; (also &Downarrow; / &DoubleDownArrow;). Do not confuse with ↓ (↓, plain) or &Darr; (↡, two-headed). Up, left, and right doubles use &uArr;, ⇐, and ⇒.

Next: Down Fish Tail

Learn the HTML entity for down fish tail (U+297F).

Down Fish Tail tutorial →

About the author

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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