𝕀
U+1D540 · Mathematical Double-Struck Capital I · Mathematical Alphanumeric Symbols · Common
Mathematical Double-Struck Capital I 𝕀
Usage snapshot:
- Used in content written with the Common script; suitable for UI labels and body text.
- Appears in the Unicode block Mathematical Alphanumeric Symbols.
See our category page for related symbols.
Look‑alikes: l (U+6C).
Need styled alternatives? Try the Fancy Text tool.
Confusables
Technical details
- Codepoint:
U+1D540 - General Category:
Lu - Age:
3.1 - Bidi Class:
L - Decomposition:
<font> 0049 - Block:
Mathematical Alphanumeric Symbols - Script:
Common - UTF-8:
F0 9D 95 80 - UTF-16:
D835 DD40 - UTF-32:
0001D540 - HTML dec:
𝕀 - HTML hex:
𝕀 - JS escape:
\u{1D540} - Python \N{}:
\N{MATHEMATICAL DOUBLE-STRUCK CAPITAL I} - Python \U:
\U0001D540 - URL-encoded:
%F0%9D%95%80 - CSS escape:
\1D540
How to type / insert
Fast copy: click the Copy button near the top of this page.
By codepoint: in many editors and IDEs, you can insert via the Unicode code U+1D540 or a built‑in character picker.
HTML: use the numeric entity 핀 (hex) or 핀 (decimal) when an HTML entity is needed.
Compatibility & troubleshooting
Font support: if the symbol does not render, the current font likely lacks this codepoint. Choose a font with broad Unicode coverage or allow a fallback font.
Web pages: ensure your CSS font stack includes a general fallback; avoid relying on images for common symbols to preserve accessibility and copyability.