U+1F17E NEGATIVE SQUARED LATIN CAPITAL LETTER O

White letter O on a black square, the O button used for blood type O.

Codepoint: U+1F17E
Name: NEGATIVE SQUARED LATIN CAPITAL LETTER O
Block: Enclosed Alphanumeric Supplement
Script: Common
Category: Other Symbol (So)
Unicode version: 6.0
Plane: SMP
HTML: 🅾 🅾
CSS: \1F17E
UTF-8: F0 9F 85 BE
UTF-16: D83C DD7E
UTF-32: 0001F17E
Also known as: blood type O
Emoji: O button (blood type) · Symbols › alphanum
Keywords: blood, button, O, type

Related characters

U+1F196SQUARED NG
U+1F195SQUARED NEW
U+1F197SQUARED OK
U+1F17FNEGATIVE SQUARED LATIN CAPITAL LETTER P
U+24C2CIRCLED LATIN CAPITAL LETTER M
U+1F194SQUARED ID
U+1F198SQUARED SOS
U+1F199SQUARED UP WITH EXCLAMATION MARK
U+2139INFORMATION SOURCE
U+1F19ASQUARED VS
U+1F193SQUARED FREE
U+1F201SQUARED KATAKANA KOKO

Enclosed Alphanumeric Supplement

201 characters in the Enclosed Alphanumeric Supplement Unicode block.

U+1F100DIGIT ZERO FULL STOP
U+1F101DIGIT ZERO COMMA
U+1F102DIGIT ONE COMMA
U+1F103DIGIT TWO COMMA
U+1F104DIGIT THREE COMMA
U+1F105DIGIT FOUR COMMA
U+1F106DIGIT FIVE COMMA
U+1F107DIGIT SIX COMMA
U+1F108DIGIT SEVEN COMMA
U+1F109DIGIT EIGHT COMMA
U+1F10ADIGIT NINE COMMA
U+1F10BDINGBAT CIRCLED SANS-SERIF DIGIT ZERO
U+1F10CDINGBAT NEGATIVE CIRCLED SANS-SERIF DIGIT ZERO
U+1F10DCIRCLED ZERO WITH SLASH
U+1F10ECIRCLED ANTICLOCKWISE ARROW
U+1F10FCIRCLED DOLLAR SIGN WITH OVERLAID BACKSLASH
U+1F110PARENTHESIZED LATIN CAPITAL LETTER A
U+1F111PARENTHESIZED LATIN CAPITAL LETTER B
U+1F112PARENTHESIZED LATIN CAPITAL LETTER C
U+1F113PARENTHESIZED LATIN CAPITAL LETTER D
U+1F114PARENTHESIZED LATIN CAPITAL LETTER E
U+1F115PARENTHESIZED LATIN CAPITAL LETTER F
U+1F116PARENTHESIZED LATIN CAPITAL LETTER G
U+1F117PARENTHESIZED LATIN CAPITAL LETTER H
U+1F118PARENTHESIZED LATIN CAPITAL LETTER I
U+1F119PARENTHESIZED LATIN CAPITAL LETTER J
U+1F11APARENTHESIZED LATIN CAPITAL LETTER K
U+1F11BPARENTHESIZED LATIN CAPITAL LETTER L
U+1F11CPARENTHESIZED LATIN CAPITAL LETTER M
U+1F11DPARENTHESIZED LATIN CAPITAL LETTER N
U+1F11EPARENTHESIZED LATIN CAPITAL LETTER O
U+1F11FPARENTHESIZED LATIN CAPITAL LETTER P
U+1F120PARENTHESIZED LATIN CAPITAL LETTER Q
U+1F121PARENTHESIZED LATIN CAPITAL LETTER R
U+1F122PARENTHESIZED LATIN CAPITAL LETTER S
U+1F123PARENTHESIZED LATIN CAPITAL LETTER T
U+1F124PARENTHESIZED LATIN CAPITAL LETTER U
U+1F125PARENTHESIZED LATIN CAPITAL LETTER V
U+1F126PARENTHESIZED LATIN CAPITAL LETTER W
U+1F127PARENTHESIZED LATIN CAPITAL LETTER X
U+1F128PARENTHESIZED LATIN CAPITAL LETTER Y
U+1F129PARENTHESIZED LATIN CAPITAL LETTER Z
U+1F12ATORTOISE SHELL BRACKETED LATIN CAPITAL LETTER S
U+1F12BCIRCLED ITALIC LATIN CAPITAL LETTER C
U+1F12CCIRCLED ITALIC LATIN CAPITAL LETTER R
U+1F12DCIRCLED CD
U+1F12ECIRCLED WZ
U+1F12FCOPYLEFT SYMBOL
U+1F130SQUARED LATIN CAPITAL LETTER A
U+1F131SQUARED LATIN CAPITAL LETTER B
U+1F132SQUARED LATIN CAPITAL LETTER C
U+1F133SQUARED LATIN CAPITAL LETTER D
U+1F134SQUARED LATIN CAPITAL LETTER E
U+1F135SQUARED LATIN CAPITAL LETTER F
U+1F136SQUARED LATIN CAPITAL LETTER G
U+1F137SQUARED LATIN CAPITAL LETTER H
U+1F138SQUARED LATIN CAPITAL LETTER I
U+1F139SQUARED LATIN CAPITAL LETTER J
U+1F13ASQUARED LATIN CAPITAL LETTER K
U+1F13BSQUARED LATIN CAPITAL LETTER L
U+1F13CSQUARED LATIN CAPITAL LETTER M
U+1F13DSQUARED LATIN CAPITAL LETTER N
U+1F13ESQUARED LATIN CAPITAL LETTER O
U+1F13FSQUARED LATIN CAPITAL LETTER P
U+1F140SQUARED LATIN CAPITAL LETTER Q
U+1F141SQUARED LATIN CAPITAL LETTER R
U+1F142SQUARED LATIN CAPITAL LETTER S
U+1F143SQUARED LATIN CAPITAL LETTER T
U+1F144SQUARED LATIN CAPITAL LETTER U
U+1F145SQUARED LATIN CAPITAL LETTER V
U+1F146SQUARED LATIN CAPITAL LETTER W
U+1F147SQUARED LATIN CAPITAL LETTER X
U+1F148SQUARED LATIN CAPITAL LETTER Y
U+1F149SQUARED LATIN CAPITAL LETTER Z
U+1F14ASQUARED HV
U+1F14BSQUARED MV
U+1F14CSQUARED SD
U+1F14DSQUARED SS
U+1F14ESQUARED PPV
U+1F14FSQUARED WC
U+1F150NEGATIVE CIRCLED LATIN CAPITAL LETTER A
U+1F151NEGATIVE CIRCLED LATIN CAPITAL LETTER B
U+1F152NEGATIVE CIRCLED LATIN CAPITAL LETTER C
U+1F153NEGATIVE CIRCLED LATIN CAPITAL LETTER D
U+1F154NEGATIVE CIRCLED LATIN CAPITAL LETTER E
U+1F155NEGATIVE CIRCLED LATIN CAPITAL LETTER F
U+1F156NEGATIVE CIRCLED LATIN CAPITAL LETTER G
U+1F157NEGATIVE CIRCLED LATIN CAPITAL LETTER H
U+1F158NEGATIVE CIRCLED LATIN CAPITAL LETTER I
U+1F159NEGATIVE CIRCLED LATIN CAPITAL LETTER J
U+1F15ANEGATIVE CIRCLED LATIN CAPITAL LETTER K
U+1F15BNEGATIVE CIRCLED LATIN CAPITAL LETTER L
U+1F15CNEGATIVE CIRCLED LATIN CAPITAL LETTER M
U+1F15DNEGATIVE CIRCLED LATIN CAPITAL LETTER N
U+1F15ENEGATIVE CIRCLED LATIN CAPITAL LETTER O
U+1F15FNEGATIVE CIRCLED LATIN CAPITAL LETTER P
U+1F160NEGATIVE CIRCLED LATIN CAPITAL LETTER Q
U+1F161NEGATIVE CIRCLED LATIN CAPITAL LETTER R
U+1F162NEGATIVE CIRCLED LATIN CAPITAL LETTER S
U+1F163NEGATIVE CIRCLED LATIN CAPITAL LETTER T
U+1F164NEGATIVE CIRCLED LATIN CAPITAL LETTER U
U+1F165NEGATIVE CIRCLED LATIN CAPITAL LETTER V
U+1F166NEGATIVE CIRCLED LATIN CAPITAL LETTER W
U+1F167NEGATIVE CIRCLED LATIN CAPITAL LETTER X
U+1F168NEGATIVE CIRCLED LATIN CAPITAL LETTER Y
U+1F169NEGATIVE CIRCLED LATIN CAPITAL LETTER Z
U+1F16ARAISED MC SIGN
U+1F16BRAISED MD SIGN
U+1F16CRAISED MR SIGN
U+1F16DCIRCLED CC
U+1F16ECIRCLED C WITH OVERLAID BACKSLASH
U+1F16FCIRCLED HUMAN FIGURE
U+1F170NEGATIVE SQUARED LATIN CAPITAL LETTER A
U+1F171NEGATIVE SQUARED LATIN CAPITAL LETTER B
U+1F172NEGATIVE SQUARED LATIN CAPITAL LETTER C
U+1F173NEGATIVE SQUARED LATIN CAPITAL LETTER D
U+1F174NEGATIVE SQUARED LATIN CAPITAL LETTER E
U+1F175NEGATIVE SQUARED LATIN CAPITAL LETTER F
U+1F176NEGATIVE SQUARED LATIN CAPITAL LETTER G
U+1F177NEGATIVE SQUARED LATIN CAPITAL LETTER H
U+1F178NEGATIVE SQUARED LATIN CAPITAL LETTER I
U+1F179NEGATIVE SQUARED LATIN CAPITAL LETTER J
U+1F17ANEGATIVE SQUARED LATIN CAPITAL LETTER K
U+1F17BNEGATIVE SQUARED LATIN CAPITAL LETTER L
U+1F17CNEGATIVE SQUARED LATIN CAPITAL LETTER M
U+1F17DNEGATIVE SQUARED LATIN CAPITAL LETTER N
U+1F17ENEGATIVE SQUARED LATIN CAPITAL LETTER O
U+1F17FNEGATIVE SQUARED LATIN CAPITAL LETTER P
U+1F180NEGATIVE SQUARED LATIN CAPITAL LETTER Q
U+1F181NEGATIVE SQUARED LATIN CAPITAL LETTER R
U+1F182NEGATIVE SQUARED LATIN CAPITAL LETTER S
U+1F183NEGATIVE SQUARED LATIN CAPITAL LETTER T
U+1F184NEGATIVE SQUARED LATIN CAPITAL LETTER U
U+1F185NEGATIVE SQUARED LATIN CAPITAL LETTER V
U+1F186NEGATIVE SQUARED LATIN CAPITAL LETTER W
U+1F187NEGATIVE SQUARED LATIN CAPITAL LETTER X
U+1F188NEGATIVE SQUARED LATIN CAPITAL LETTER Y
U+1F189NEGATIVE SQUARED LATIN CAPITAL LETTER Z
U+1F18ACROSSED NEGATIVE SQUARED LATIN CAPITAL LETTER P
U+1F18BNEGATIVE SQUARED IC
U+1F18CNEGATIVE SQUARED PA
U+1F18DNEGATIVE SQUARED SA
U+1F18ENEGATIVE SQUARED AB
U+1F18FNEGATIVE SQUARED WC
U+1F190SQUARE DJ
U+1F191SQUARED CL
U+1F192SQUARED COOL
U+1F193SQUARED FREE
U+1F194SQUARED ID
U+1F195SQUARED NEW
U+1F196SQUARED NG
U+1F197SQUARED OK
U+1F198SQUARED SOS
U+1F199SQUARED UP WITH EXCLAMATION MARK
U+1F19ASQUARED VS
U+1F19BSQUARED THREE D
U+1F19CSQUARED SECOND SCREEN
U+1F19DSQUARED TWO K
U+1F19ESQUARED FOUR K
U+1F19FSQUARED EIGHT K
U+1F1A0SQUARED FIVE POINT ONE
U+1F1A1SQUARED SEVEN POINT ONE
U+1F1A2SQUARED TWENTY-TWO POINT TWO
U+1F1A3SQUARED SIXTY P
U+1F1A4SQUARED ONE HUNDRED TWENTY P
U+1F1A5SQUARED LATIN SMALL LETTER D
U+1F1A6SQUARED HC
U+1F1A7SQUARED HDR
U+1F1A8SQUARED HI-RES
U+1F1A9SQUARED LOSSLESS
U+1F1AASQUARED SHV
U+1F1ABSQUARED UHD
U+1F1ACSQUARED VOD
U+1F1ADMASK WORK SYMBOL
U+1F1AETOMOBIKI SYMBOL
U+1F1E6REGIONAL INDICATOR SYMBOL LETTER A
U+1F1E7REGIONAL INDICATOR SYMBOL LETTER B
U+1F1E8REGIONAL INDICATOR SYMBOL LETTER C
U+1F1E9REGIONAL INDICATOR SYMBOL LETTER D
U+1F1EAREGIONAL INDICATOR SYMBOL LETTER E
U+1F1EBREGIONAL INDICATOR SYMBOL LETTER F
U+1F1ECREGIONAL INDICATOR SYMBOL LETTER G
U+1F1EDREGIONAL INDICATOR SYMBOL LETTER H
U+1F1EEREGIONAL INDICATOR SYMBOL LETTER I
U+1F1EFREGIONAL INDICATOR SYMBOL LETTER J
U+1F1F0REGIONAL INDICATOR SYMBOL LETTER K
U+1F1F1REGIONAL INDICATOR SYMBOL LETTER L
U+1F1F2REGIONAL INDICATOR SYMBOL LETTER M
U+1F1F3REGIONAL INDICATOR SYMBOL LETTER N
U+1F1F4REGIONAL INDICATOR SYMBOL LETTER O
U+1F1F5REGIONAL INDICATOR SYMBOL LETTER P
U+1F1F6REGIONAL INDICATOR SYMBOL LETTER Q
U+1F1F7REGIONAL INDICATOR SYMBOL LETTER R
U+1F1F8REGIONAL INDICATOR SYMBOL LETTER S
U+1F1F9REGIONAL INDICATOR SYMBOL LETTER T
U+1F1FAREGIONAL INDICATOR SYMBOL LETTER U
U+1F1FBREGIONAL INDICATOR SYMBOL LETTER V
U+1F1FCREGIONAL INDICATOR SYMBOL LETTER W
U+1F1FDREGIONAL INDICATOR SYMBOL LETTER X
U+1F1FEREGIONAL INDICATOR SYMBOL LETTER Y

…and 1 more characters.