Team change script for my game isnt working?

So my friend and I are making a game where we throw cookies at each other and I needed to make a team change script so I followed a tutorial and it kind of works when I click red or blue it just sets my team to neutral. Thanks!

Script in server script service:

game.ReplicatedStorage["Change Team"].OnServerEvent:Connect(function(player,teamColor)
    player.TeamColor = teamColor
    player:LoadCharacter()
end)

local script in my gui:

local RemoteEvent = game.ReplicatedStorage["Change Team"]

local menuButton = script.Parent:WaitForChild("TextButton")

local frame = script.Parent:WaitForChild("Frame")

local BlueColor = "Really Blue"
local RedColor = "Really Red"

frame.blue.MouseButton1Click:Connect(function()
    RemoteEvent:FireServer(BrickColor.new(BlueColor))
end)


frame.red.MouseButton1Click:Connect(function()
    RemoteEvent:FireServer(BrickColor.new(RedColor))
end)

menuButton.MouseButton1Click:Connect(function()
    frame.Visible = not frame.Visible
end)