UnicodeCharactercom
𝐊
U+1D40A Β· MATHEMATICAL BOLD CAPITAL K

Mathematical Bold Capital K

  • CodepointU+1D40A
  • NameMATHEMATICAL BOLD CAPITAL K
  • Decimal119818
  • BlockMathematical Alphanumeric Symbols (U+1D400–U+1D7FF)
  • Plane1 β€” Supplementary Multilingual Plane
  • ScriptCommon
  • CategoryLu β€” Uppercase Letter
  • Unicode version3.1 (2001)
  • Bidi classL β€” Left-to-Right
  • Combining class0
  • East Asian widthN β€” Neutral
  • MirroredNo

About this character

U+1D40A (𝐊) is MATHEMATICAL BOLD CAPITAL K, 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+004B K (compatibility decomposition <font>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+004B K. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type 𝐊

Β§

Encodings & escapes

UTF-8 encoder β†’
UTF-8F0 9D 90 8A4 bytes
UTF-16D835 DC0Asurrogate pair
UTF-320001D40A4 bytes
HTML decimal&#119818;
HTML hex&#x1D40A;
CSS\1D40Ain content: "…"
JavaScript\u{1D40A}ES2015+
JavaScript\uD835\uDC0Asurrogate pair
JSON\uD835\uDC0A
Python\U0001D40A
Python\N{MATHEMATICAL BOLD CAPITAL K}by name
Java / C#\uD835\uDC0A
C / C++\U0001D40Auniversal character name
Rust / Swift / PHP\u{1D40A}
Go\U0001D40A
Ruby\u{1D40A}
Excel / Sheets=UNICHAR(119818)
URL-encoded%F0%9D%90%8Apercent-encoded UTF-8
Β§

Normalization forms

Normalizer β†’
NFCunchanged
NFDunchanged
NFKCU+004B K
NFKDU+004B K
Β§

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+004BKLatin Capital Letter K U+039AΚGreek Capital Letter Kappa U+041AКCyrillic Capital Letter Ka U+16D5α›•Runic Letter Open-P U+212Aβ„ͺKelvin Sign U+FF2BοΌ«Fullwidth Latin Capital Letter K U+1D43E𝐾Mathematical Italic Capital K U+1D472𝑲Mathematical Bold Italic Capital K U+1D4A6𝒦Mathematical Script Capital K U+1D4DAπ“šMathematical Bold Script Capital K U+1D50Eπ”ŽMathematical Fraktur Capital K U+1D542𝕂Mathematical Double-Struck Capital K U+1D576𝕢Mathematical Bold Fraktur Capital K U+1D5AAπ–ͺMathematical Sans-Serif Capital K U+1D5DEπ—žMathematical Sans-Serif Bold Capital K U+1D612π˜’Mathematical Sans-Serif Italic Capital K
Β§

Nearby in Mathematical Alphanumeric Symbols

All in block β†’
U+1D404𝐄Mathematical Bold Capital E U+1D405𝐅Mathematical Bold Capital F U+1D406𝐆Mathematical Bold Capital G U+1D407𝐇Mathematical Bold Capital H U+1D408𝐈Mathematical Bold Capital I U+1D409𝐉Mathematical Bold Capital J U+1D40B𝐋Mathematical Bold Capital L U+1D40C𝐌Mathematical Bold Capital M U+1D40D𝐍Mathematical Bold Capital N U+1D40E𝐎Mathematical Bold Capital O U+1D40F𝐏Mathematical Bold Capital P U+1D410𝐐Mathematical Bold Capital Q