int redPin = 11;
int greenPin = 10;
int bluePin = 9;
void setup()
{
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
}  

void loop()
{
  setColor(0, 255, 255);  // red
  delay(2000);
  setColor(0, 0, 0); // none
  setColor(0, 175, 255); // orange
  delay(1000);
  setColor(0, 0, 0); // none
  setColor(255, 0, 255); // green
  delay(2000);
  for (int i = 0; i<4; i++)
  {
    delay(500);
    setColor(255, 0, 255); // green
    delay(500);
    setColor(0, 0, 0); // none
  }
  setColor(0, 175, 255); // orange
  delay(1000);
}

void setColor(int red, int green, int blue)
{
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);  
}