🅾️⭕️

#letter o #type o #blood type o #o button #hollow red circle

⭕️⚪️

#hollow red circle #empty circle #state comparison

🔴⛕

#red circle shape #hollow red circle #ring symbol #simple circle

😉⭕

#wink #hollow red circle #circle symbol #halo shape #;0 circle

🔴⭕

#red outline circle #hollow red circle #red ring #color shape