What's the /fill command for yellow wool in minecraft?

What's the /fill command for yellow wool in minecraft?

Assuming you're using Worldedit as you didn't specify which mod or plugin you're using, you can do //fill wool: colour so for yellow wool it is //fill wool: yellow.

Well I meant just plain vanilla, and its /fill (cords 1) (cords 2) wool 4, for anyone that wants to know!

What's the /fill command for yellow wool in minecraft?