Windows
Hold Alt and type 599 on the numeric keypad.
Accents
Copy the character, or use the shortcut that matches your keyboard and app.
All D accentsHold Alt and type 599 on the numeric keypad.
Character Viewer → d hook
Type 0257 then Alt + X
Insert → Special characters → d hook
Click the keycap, then paste with Ctrl+V or Cmd+V.
Num Lock on, hold Alt, type 599, release Alt.
Use the Unicode, HTML, CSS, or JS value below in documents and stylesheets.
U+0257ɗɗ\0257\u{0257}Alt + 599