UnicodeCharactercom
𝕴
U+1D574 · MATHEMATICAL BOLD FRAKTUR CAPITAL I

Mathematical Bold Fraktur Capital I

  • CodepointU+1D574
  • NameMATHEMATICAL BOLD FRAKTUR CAPITAL I
  • Decimal120180
  • BlockMathematical Alphanumeric Symbols (U+1D400–U+1D7FF)
  • Plane1 — Supplementary Multilingual Plane
  • ScriptCommon
  • CategoryLu — Uppercase Letter
  • Unicode version3.1 (2001)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthN — Neutral
  • MirroredNo

About this character

U+1D574 (𝕴) is MATHEMATICAL BOLD FRAKTUR CAPITAL I, an uppercase letter in the Mathematical Alphanumeric Symbols block. Its script is Common: it is shared by many writing systems rather than belonging to one. It was added in Unicode 3.1 (2001).

It is a font variant of U+0049 I (compatibility decomposition <font>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+0049 I. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type 𝕴

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Encodings & escapes

UTF-8 encoder →
UTF-8F0 9D 95 B44 bytes
UTF-16D835 DD74surrogate pair
UTF-320001D5744 bytes
HTML decimal&#120180;
HTML hex&#x1D574;
CSS\1D574in content: "…"
JavaScript\u{1D574}ES2015+
JavaScript\uD835\uDD74surrogate pair
JSON\uD835\uDD74
Python\U0001D574
Python\N{MATHEMATICAL BOLD FRAKTUR CAPITAL I}by name
Java / C#\uD835\uDD74
C / C++\U0001D574universal character name
Rust / Swift / PHP\u{1D574}
Go\U0001D574
Ruby\u{1D574}
Excel / Sheets=UNICHAR(120180)
URL-encoded%F0%9D%95%B4percent-encoded UTF-8
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Normalization forms

Normalizer →
NFCunchanged
NFDunchanged
NFKCU+0049 I
NFKDU+0049 I
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Looks similar

Characters that Unicode’s security data (UTS #39 confusables) lists as visually confusable with this one. Useful for spotting lookalike spoofing in URLs and usernames.

U+00311Digit One U+0049ILatin Capital Letter I U+006ClLatin Small Letter L U+007C|Vertical Line U+0196ƖLatin Capital Letter Iota U+01C0ǀLatin Letter Dental Click U+0399ΙGreek Capital Letter Iota U+0406ІCyrillic Capital Letter Byelorussian-Ukrainian I U+04C0ӀCyrillic Letter Palochka U+05C0׀Hebrew Punctuation Paseq U+05D5וHebrew Letter Vav U+05DFןHebrew Letter Final Nun U+0627اArabic Letter Alef U+0661١Arabic-Indic Digit One U+06F1۱Extended Arabic-Indic Digit One U+16C1ᛁRunic Letter Isaz Is Iss I
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Nearby in Mathematical Alphanumeric Symbols

All in block →
U+1D56E𝕮Mathematical Bold Fraktur Capital C U+1D56F𝕯Mathematical Bold Fraktur Capital D U+1D570𝕰Mathematical Bold Fraktur Capital E U+1D571𝕱Mathematical Bold Fraktur Capital F U+1D572𝕲Mathematical Bold Fraktur Capital G U+1D573𝕳Mathematical Bold Fraktur Capital H U+1D575𝕵Mathematical Bold Fraktur Capital J U+1D576𝕶Mathematical Bold Fraktur Capital K U+1D577𝕷Mathematical Bold Fraktur Capital L U+1D578𝕸Mathematical Bold Fraktur Capital M U+1D579𝕹Mathematical Bold Fraktur Capital N U+1D57A𝕺Mathematical Bold Fraktur Capital O