Types of Haki

Haki is separated into three categories, or "colors":
1)Kenbunshoku Haki, which grants users a sixth sense of the world around them and limited precognitive abilities.
2)Busoshoku Haki, which allows the user to use their spirit as armor to defend against attacks or to make their own attacks more potent.
3)Haoshoku Haki, a rare type of Haki only one in a million can use which grants the user the ability to overpower the will of others.
Most people who can use Haki tend to have a type they're better at and as a result focus on that type. However, a person can improve their abilities with all the types of Haki, it just requires more work.