UnicodeCharactercom
Ί
U+1FDB · GREEK CAPITAL LETTER IOTA WITH OXIA

Greek Capital Letter Iota with Oxia

  • CodepointU+1FDB
  • NameGREEK CAPITAL LETTER IOTA WITH OXIA
  • Decimal8155
  • BlockGreek Extended (U+1F00–U+1FFF)
  • Plane0 — Basic Multilingual Plane
  • ScriptGreek
  • CategoryLu — Uppercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthN — Neutral
  • MirroredNo

About this character

U+1FDB (Ί) is GREEK CAPITAL LETTER IOTA WITH OXIA, an uppercase letter in the Greek Extended block. It belongs to the Greek script. It was added in Unicode 1.1 (1993).

Its lowercase form is U+1F77 ί.

It is a canonical singleton: Unicode treats it as identical to U+038A Ί, and every normalization form (NFC, NFD, NFKC, NFKD) replaces it with that character. Text that must round-trip exactly should avoid it. See the normalization guide.

How to type Ί

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Encodings & escapes

UTF-8 encoder →
UTF-8E1 BF 9B3 bytes
UTF-161FDB1 code unit
UTF-3200001FDB4 bytes
HTML decimalΊ
HTML hexΊ
CSS\1FDBin content: "…"
JavaScript\u1FDB
JSON\u1FDB
Python\u1FDB
Python\N{GREEK CAPITAL LETTER IOTA WITH OXIA}by name
Java / C#\u1FDB
C / C++\u1FDBuniversal character name
Rust / Swift / PHP\u{1FDB}
Go\u1FDB
Ruby\u1FDB
Excel / Sheets=UNICHAR(8155)
URL-encoded%E1%BF%9Bpercent-encoded UTF-8
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Normalization forms

Normalizer →
NFCU+038A Ί
NFDU+0399 Ι + U+0301 ◌́
NFKCU+038A Ί
NFKDU+0399 Ι + U+0301 ◌́
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Nearby in Greek Extended

All in block →
U+1FD6ῖGreek Small Letter Iota with Perispomeni U+1FD7ῗGreek Small Letter Iota with Dialytika and Perispomeni U+1FD8ῘGreek Capital Letter Iota with Vrachy U+1FD9ῙGreek Capital Letter Iota with Macron U+1FDAῚGreek Capital Letter Iota with Varia U+1FDD῝Greek Dasia and Varia U+1FDE῞Greek Dasia and Oxia U+1FDF῟Greek Dasia and Perispomeni U+1FE0ῠGreek Small Letter Upsilon with Vrachy U+1FE1ῡGreek Small Letter Upsilon with Macron