if you are using normal minecraft
command /potion:
trigger:
console command "/give %player% potion{CustomPotionColor:16718929,display:{Name:'[{"text":"Potion of Healing","italic":false}]'},CustomPotionEffects:[{Id:6,Duration:1,Amplifier:1}]} 1"
if you are using essentials
command /potion:
trigger:
console command "/minecraft:give %player% potion{CustomPotionColor:16718929,display:{Name:'[{"text":"Potion of Healing","italic":false}]'},CustomPotionEffects:[{Id:6,Duration:1,Amplifier:1}]} 1"