How to disable a button?

I noticed there are Normal, Highlighted, Pressed and Disabled colours for buttons but how does one actually set a button to disabled so that colour shows up o the disabled sprite loads?

myButton.enabled = false makes the button not render at all, not show in a "disabled" colour so how then?

Thanks

 

Set interactable on the button component to false

 

interactable. Brilliant. thanks a bunch
All too easy

 

This would make the button non-clickable though, right?
Is there a way to get that color without making the button non-clickable?

Or is the best option just to change the color of the normal state?

 

FOLLOW UP

What's the proper code (Javascript version) for changing the color? The code below is not proper.

Code (csharp):

1. shipButtons[shipNumber].GetComponent(UI.Button).normalColor = Color(0.5,0.5,0.5,0.5);