Okay, so I made this script and it's supposed to change the head color to Really red
game.workspace.BrickColor HeadColor = Really Red
P.S. I am also having this problem where I cannot press Run or Play to test the game, the buttons are just grayed out?
Ok. Lets start from the beginning..
BrickColor is a property that all BaseParts contain. It takes in a BrickColor value, which is a specific color value. You can make BrickColor values with the BrickColor.new function.
Ex: BrickColor.new("Really red") is red
Now as for applying this to your object, you have to actually index the character's "Head" object. The hierarchy to get to the head object looks like this:
game
Workspace
YourCharacter
Head
So, index the head object and manipulate the BrickColor property properly and you should be good.
game.Workspace.YourCharacter.Head.BrickColor = BrickColor.new("Really red")
Note: simply putting 'workspace' instead of 'game.Workspace' works as well