Identify, evaluate, prioritize, and then control
The answer to this question would be: Lime green
The lime green color code is for audio output for speaker or headphones. Color coding is greatly helpful to make sure that the port you are using is correct. Using the color you can determine what kind of input or output the port is for. There is a few others color coding like pink for analog microphone input, or light blue for audio input of analog line.
