How do I change the players color and then change it back to what it was?

I'm like really new to scripting so I don't know if it's simple or not but lets say I change the players Left Arm Color to Quill grey

local Player = game.Players.LocalPlayer
local Character = Player.Character
local LeftArm = Character:WaitForChild("Left Arm")
local Button = script.Parent.Button
local Colored = false

Button.MouseButton1Down:Connect(function()
	if Colored == false then
	LeftArm.BrickColor = BrickColor.new("Quill grey")
	Colored = true
	elseif Colored == true then 
	-- This is what I don't know how to
	-- I want it to go back to the players original color
	Colored = false

	end
end

So basically I want it to return to the players orignal arm color