How could I make this script go through all palette colors efficiently?

I need it to check if all sixty-four palette colors have been typed in the TextBox. Thank you in advance for your help!

while wait(1) do
	if script.Parent.Text == "White" then
		pcb = game.Workspace.F1Standard.PrimaryColoredBlocks:GetChildren()
		for _,part in pairs(pcb) do
   			if part:IsA("BasePart") then
     			part.BrickColor = BrickColor.new("White")
   			end
		end
	end
end

You don't need to know a list of all of the palette colors. Notice

script.Parent.Text == "White"

and you write

BrickColor.new("White")

Given the above equality, what's a way to rewrite the second expression so that it doesn't refer to a specific color?

BrickColor.new(script.Parent.Text)

In other words, to handle all colors, you can simply do

while wait(1) do
	local color = BrickColor.new(script.Parent.Text)
	pcb = game.Workspace.F1Standard.PrimaryColoredBlocks:GetChildren()
	for _, part in pairs(pcb) do
		if part:IsA("BasePart") then
			part.BrickColor = color
		end
	end
end

This has a minor problem, which is that it will accept not real color names and default to gray.

You can check that the name of the resulting color matches to prevent this:

while wait(1) do
	local color = BrickColor.new(script.Parent.Text)

	if color.Name == script.Parent.Text then
		pcb = game.Workspace.F1Standard.PrimaryColoredBlocks:GetChildren()
		for _, part in pairs(pcb) do
			if part:IsA("BasePart") then
				part.BrickColor = color
			end
		end
	end
end