const int pinR = 6;
const int pinG = 5; //analog pin
const int pinB = 3;


void setup() {

  pinMode(pinR , OUTPUT);
  pinMode(pinG , OUTPUT);
  pinMode(pinB , OUTPUT);

}

void loop() {
 
 RGBcolor(77, 0, 0);
 RGBcolor(133, 255, 251);
 RGBcolor(255, 133, 133);

}

void RGBcolor(int R , int G , int B){
 analogWrite(pinR , R);
 analogWrite(pinG , G);
 analogWrite(pinB , B);
 delay(1000);
}