colour sensor to rgb

Hi everyone, this is my first time using arduino (probably should have chosen an easier project to start with but i’m ambitious). My basic idea is to use a colour sensor to detect the colours on my tv screen and then output pwm to control a strip of RGB LEDs (analogue not digital). Like I said, I’m new to this so could do with some help as I cant find any videos of this sort of thing. I have a power supply for the LED strip so only need to control them via the arduino.

I hope someone can offer me some advice (or at least tell me it’s impossible!)

Thanks very much

I’m not affiliated with Sparkfun but wouldn’t this and it’s examples in github be a good starting point?

https://www.sparkfun.com/products/12829