Every action on a page sits somewhere in a pyramid of importance

When designing these actions, it’s important to communicate their place in the hierarchy.  

• Primary actions should be obvious. Solid, high contrast background colors work great here. 
• Secondary actions should be clear but not prominent. Outline styles or lower contrast background colors are great options. 
• Tertiary actions should be discoverable but unobtrusive. Styling these actions like links is usually the best approach.