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

void setup() {
  pinMode(redPin, OUTPUT);
  delay(500);
  pinMode(greenPin, OUTPUT);
  delay(500);
  pinMode(bluePin, OUTPUT);
  delay(500);
}
void loop() {
  colorRGB(255, 0, 0, 100); //Brightness level 100%
  delay(3000);
  colorRGB(255, 0, 0, 25); //Brightness level 25%
  delay(3000);

  colorRGB(255, 255, 0, 100); //Brightness level 100%
  delay(3000);
  colorRGB(255, 255, 0, 25); //Brightness level 25%
  delay(3000);

  colorRGB(255, 255, 127, 100); //Brightness level 100%
  delay(3000);
  colorRGB(255, 255, 127, 25); //Brightness level 25%
  delay(3000);
}
void colorRGB(int red, int green, int blue, int brightness_percent) {
  analogWrite(redPin, red * brightness_percent / 100);
  analogWrite(greenPin, green * brightness_percent / 100);
  analogWrite(bluePin, blue * brightness_percent / 100);



}