Color mixing lamp - Arduino sketch

const int redPin = 9;
const int greenPin = 10;
const int bluePin = 11;

int redValue, greenValue, blueValue;

void blinkLED(){
  analogWrite(redPin, 255);
  analogWrite(greenPin, 255);
  analogWrite(bluePin, 255);
  delay(200);
  analogWrite(redPin, 0);
  analogWrite(greenPin, 0);
  analogWrite(bluePin, 0);
}

void setup(){
  Serial.begin(9600);
  pinMode(redPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
  blinkLED();
}

void loop(){
  if(Serial.available() > 0){
    redValue = Serial.parseInt();
    greenValue = Serial.parseInt();
    blueValue = Serial.parseInt();
    analogWrite(redPin, redValue);
    analogWrite(greenPin, greenValue);
    analogWrite(bluePin, blueValue);
  }
  delay(50);
}