UnicodeCharactercom
𝕕
U+1D555 Β· MATHEMATICAL DOUBLE-STRUCK SMALL D

Mathematical Double-Struck Small D

  • CodepointU+1D555
  • NameMATHEMATICAL DOUBLE-STRUCK SMALL D
  • Decimal120149
  • BlockMathematical Alphanumeric Symbols (U+1D400–U+1D7FF)
  • Plane1 β€” Supplementary Multilingual Plane
  • ScriptCommon
  • CategoryLl β€” Lowercase Letter
  • Unicode version3.1 (2001)
  • Bidi classL β€” Left-to-Right
  • Combining class0
  • East Asian widthN β€” Neutral
  • MirroredNo

About this character

U+1D555 (𝕕) is MATHEMATICAL DOUBLE-STRUCK SMALL D, a lowercase 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+0064 d (compatibility decomposition <font>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+0064 d. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type 𝕕

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Encodings & escapes

UTF-8 encoder β†’
UTF-8F0 9D 95 954 bytes
UTF-16D835 DD55surrogate pair
UTF-320001D5554 bytes
HTML named&dopf;named character reference
HTML decimal&#120149;
HTML hex&#x1D555;
CSS\1D555in content: "…"
JavaScript\u{1D555}ES2015+
JavaScript\uD835\uDD55surrogate pair
JSON\uD835\uDD55
Python\U0001D555
Python\N{MATHEMATICAL DOUBLE-STRUCK SMALL D}by name
Java / C#\uD835\uDD55
C / C++\U0001D555universal character name
Rust / Swift / PHP\u{1D555}
Go\U0001D555
Ruby\u{1D555}
Excel / Sheets=UNICHAR(120149)
URL-encoded%F0%9D%95%95percent-encoded UTF-8
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Normalization forms

Normalizer β†’
NFCunchanged
NFDunchanged
NFKCU+0064 d
NFKDU+0064 d
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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+0064dLatin Small Letter D U+0501ԁCyrillic Small Letter Komi De U+2146β…†Double-Struck Italic Small D U+217Eβ…ΎSmall Roman Numeral Five Hundred U+1D41D𝐝Mathematical Bold Small D U+1D451𝑑Mathematical Italic Small D U+1D485𝒅Mathematical Bold Italic Small D U+1D4B9𝒹Mathematical Script Small D U+1D4ED𝓭Mathematical Bold Script Small D U+1D521𝔑Mathematical Fraktur Small D U+1D589𝖉Mathematical Bold Fraktur Small D U+1D5BD𝖽Mathematical Sans-Serif Small D U+1D5F1𝗱Mathematical Sans-Serif Bold Small D U+1D625π˜₯Mathematical Sans-Serif Italic Small D U+1D659𝙙Mathematical Sans-Serif Bold Italic Small D U+1D68D𝚍Mathematical Monospace Small D
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Nearby in Mathematical Alphanumeric Symbols

All in block β†’
U+1D54F𝕏Mathematical Double-Struck Capital X U+1D550𝕐Mathematical Double-Struck Capital Y U+1D552𝕒Mathematical Double-Struck Small A U+1D553𝕓Mathematical Double-Struck Small B U+1D554𝕔Mathematical Double-Struck Small C U+1D556𝕖Mathematical Double-Struck Small E U+1D557𝕗Mathematical Double-Struck Small F U+1D558π•˜Mathematical Double-Struck Small G U+1D559𝕙Mathematical Double-Struck Small H U+1D55Aπ•šMathematical Double-Struck Small I U+1D55B𝕛Mathematical Double-Struck Small J