#define pinR 11
#define pinG 10
#define pinB 9

void setup() {
pinMode(pinR, OUTPUT);
pinMode(pinG, OUTPUT);
pinMode(pinB, OUTPUT);
}

void loop() {
  ledRGB(143,0,255);
}

void ledRGB (int R, int G, int B){
   analogWrite(pinR, R);
   analogWrite(pinG, G);
   analogWrite(pinB, B); 
}