Technical information

Symbol
Namedouble-struck italic small j
Descriptionsometimes used for the imaginary unit
Unicode numberU+2149
CategoryDouble-struck symbols

Encoding

HTML Entityⅉ
HTML Entity (hex)ⅉ
URL Escape Code%E2%85%89
UTF-8 (hex)0xE2 0x85 0x89
UTF-8 (binary)11100010:10000101:10001001
UTF-160x2149
UTF-320x00002149

Source Code

C, C++, and Java"\u2149"
CSS Code\2149
JavaScript"\u2149"
Perl\x{2149}
Python 2u"\u2149"
Python 3\u2149
Ruby\u{2149}

Preview

This Unicode character looks like this ⅉ in sentence and in bold like this and in italic like this .

Font size:

12px
16px
20px
28px
36px
48px
72px

CSS Property: font-weight

100
200
300
400
500
600
700
800
900

HTML Forms and Input

input
Disabled input
input-group
select
button
button

Code examples in HTML and CSS

<span>&#8521;</span>

            
span {
    content: "\2149";
}

The symbol in different fonts

-apple-system
Apple Color Emoji
Arial
BlinkMacSystemFont
Courier New
Georgia
Droid Sans
Helvetica
Noto Sans
Oxygen
Roboto
"Segoe UI"
sans-serif
Segoe UI Emoji
Segoe UI Symbol
system-ui
Times New Roman
Ubuntu
Verdana

References