Uppercase I Script Capital (ℐ) is the Unicode character at U+2110 (SCRIPT CAPITAL I). HTML5 names it ℐ (also ℐ). Use it for mathematical script notation and formal typography.
Remember
Character ℐ
Unicode U+2110
Hex entity ℐ
Decimal ℐ
Named entity ℐ (ℐ)
CSS escape \2110
Official name SCRIPT CAPITAL I
Block Letterlike Symbols
Prefer ℐ or ℐ in HTML markup. Do not confuse with plain I (U+0049) or ℑ (U+2111).
Built with Named: ℐ
Built with Hex: ℐ
Built with Decimal: ℐ
Built with CSS: ℐ
Typed: ℐ
Math: ℐ(x)
How It Works
1. Named:ℐ is the HTML5 name for U+2110 → ℐ (case-sensitive). ℐ is an alternate name for the same glyph.
2. Hex:ℐ inserts the same code point. Same visual as named.
3. Decimal:ℐ is the base-10 form of U+2110.
4. CSS: use \2110 in content (not an HTML entity). #point::after appends that glyph after the paragraph text.
5. Typed: paste ℐ in a UTF-8 document, or write math text with ℐ.
Pitfalls & Tips
Common mistakes when working with this character.
Named
Prefer ℐ
The name is case-sensitive. ℐ and ℐ both render ℐ. Prefer ℐ for shorter, clearer source.
Look-alikes
Not ℑ and not plain I
Script capital I is ℐ (U+2110). Plain Latin is I. Black-letter / imaginary-part is ℑ (U+2111). Match the notation you need.
Semantics
Prefer the letterlike symbol
Prefer U+2110 (or ℐ) over styling a plain I with a script font when the semantics require the letterlike symbol.
Fonts
Check Letterlike coverage
Some fonts omit U+2110. If the glyph is missing, switch to a font with Letterlike Symbols support.
CSS vs HTML
Do not mix escapes
\2110 belongs in CSS. ℐ / ℐ / ℐ belong in HTML.
Semicolon
End references
Always finish with ; — write ℐ, not &Iscr.
Compatibility
Browser Support
Uppercase I Script Capital (U+2110) and its entity forms (ℐ, ℐ, ℐ, CSS \\2110) are supported in all modern browsers. Glyph coverage depends on the font.
✓ Universal support
Uppercase I Script Capital
Encode with named, hex, decimal, or CSS escape — or type ℐ directly in UTF-8 HTML. Prefer ℐ or ℐ.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+2110 / entitiesFull support
Bottom line: Prefer ℐ or ℐ for readable HTML. Use \\2110 only inside CSS content. Do not confuse with plain I or ℑ ℑ.
Remember
Key Takeaways
Unicode: this character is U+2110 (decimal 8464) — SCRIPT CAPITAL I.
HTML: prefer ℐ — or use ℐ / ℐ (also ℐ).
Use ℐ (named), ℐ (hex), ℐ (decimal), or the CSS escape \2110 in the content property. All render ℐ. Prefer ℐ or ℐ for readable markup. ℐ is an alternate name for the same character.
U+2110 (SCRIPT CAPITAL I). Hex 2110, decimal 8464, named entities ℐ and ℐ. It belongs to Letterlike Symbols (U+2100–U+214F).
Yes. HTML5 defines ℐ and ℐ for U+2110. Prefer ℐ for general use. Both are case-sensitive.
U+2110 is a letterlike script capital I used in math typography. U+0049 is plain Latin capital I. U+2111 (ℑ / ℑ) is black-letter capital I, often used for the imaginary part — a different character.
Use it for mathematical script notation and formal typography that needs ℐ — not as a substitute for plain I, and not when you need the imaginary-part symbol ℑ (U+2111).
HTML entities (ℐ, ℐ, or ℐ) go in markup. The CSS escape \2110 is used in stylesheets (usually in the content property of ::before/::after). Both render ℐ.
🤔
Did you know?
Uppercase I Script Capital is Unicode U+2110 (decimal 8464) — glyph ℐ (SCRIPT CAPITAL I) in Letterlike Symbols. HTML5 names it ℐ (also ℐ). Prefer it for mathematical script notation. Do not confuse it with plain I (U+0049) or black-letter capital I / imaginary-part symbol ℑ (U+2111).
