Calling a list of colors within a switch case for neopixel

Projects Programming
3

My terminology is probably not correct. here is an example of what im trying to do.
void loop(){

switch (state){
    case 1:
      FX1();
      strip.setBrightness(pot);
      break;
    case 2:
      FX2();
      strip.setBrightness(pot);
      break;
}

void colors(){
uint32_t red = strip.Color(255,0,0);
uint32_t blue = strip.Color(0,0,255);
}

void FX1(){
colors();
strip.fill(red);
strip.show();
}

void FX2(){
colors();
strip.fill(blue);
strip.show();
}