Filtering out a comma in a string value?

alright so i am completely new to scripting anything with strings and i got a system set up to when someone joins read a value and set the players color to that value but the issue is some of the value options wont be 11 characters long (124,92,70 something like that instead of 204, 142, 105) and when its like that it just sets the last 2 Color3 values to 0 because its trying to read the comma from it but i dont know how to filter the comma out and this is the best attempt ive had so far

Script:

		local R = string.sub(Color.Value, 1, 3)
		if string.match(Color.Value,",",5,7) then
			local G = string.sub(Color.Value,5,6)
		else
			local G = string.sub(Color.Value, 5, 7)
		if string.match(Color.Value,",",8) then
			local B = string.sub(Color.Value,8)
		else
			local B = string.sub(Color.Value, 9)
		end
		end
		for i,v in pairs(char:GetChildren()) do
			if v:IsA("BodyColors") then
				v.HeadColor3 = Color3.fromRGB(R,G,B)
				v.LeftArmColor3 = Color3.fromRGB(R,G,B)
				v.LeftLegColor3 = Color3.fromRGB(R,G,B)
				v.RightArmColor3 = Color3.fromRGB(R,G,B)
				v.RightLegColor3 = Color3.fromRGB(R,G,B)
				v.TorsoColor3 = Color3.fromRGB(R,G,B)
			end
		end