// constants (or #define with no ; at end of line) won't change. They're used here to set pin numbers:
int redLED = 11;
int greenLED = 10;
int blueLED = 9;
String myColour = "";
String msg="What colour LED? ";

// Variables will change:


void setup() {
  pinMode (redLED, OUTPUT);
  pinMode (greenLED, OUTPUT);
  pinMode (blueLED, OUTPUT);
  Serial.begin(9600);
  }

void loop() {

for (int r=0; r<=255; r=r+10){
  for (int g=0; g<=255; g=g+10){
    for (int b=0; b<=255; b=b+10){
  analogWrite(blueLED, b);
  analogWrite(greenLED, g);
  analogWrite(redLED, r);
Serial.print(r);
Serial.print(", ");
Serial.print(g);
Serial.print(", ");
Serial.println(b);
    }
  }
}
}