#define INPUT_SIZE 6

void loop() {
  if(Serial.available()) {
    char input[INPUT_SIZE];
    Serial.readBytes(input, INPUT_SIZE);

    long colorcode = (long) strtol(input, NULL, 16);
    color[0] = colorcode >> 16;
    color[1] = colorcode >> 8 & 0xFF;
    color[2] = colorcode & 0xFF;

    setColor(color);
  }
}