void setup() {
 
pinMode(9 , OUTPUT);
pinMode(10 , OUTPUT);
pinMode(11 , OUTPUT);

}

void loop() {
 
setColor(255,0,0);
delay(1000);
setColor(0,255,0);
delay(1000);
setColor(0,0,255);
delay(1000);
setColor(50,150,50);
delay(1000);
}

void setColor(int red , int green , int blue){
  analogWrite(9 , blue);
  analogWrite(10 , green);
  analogWrite(11 , red);
}