FastLED set Hue/Brightness/Saturation with 3 potentiometers

#include <FastLED.h>


#define NUM_LEDS 1
#define LED_PIN 6

#define COLOR_ORDER GRB
#define LED_TYPE WS2812

CRGB leds[NUM_LEDS];

int poti1 = 0; //brightness @ pin A0
int poti2 = 1; //hue @ pin A1
int poti3 = 2; //saturation @ pin A2

int poti1val = 0;
int poti2val = 0;
int poti3val = 0;


uint8_t brightness = 0;
uint8_t hue = 0;
uint8_t saturation = 0;

void setup() {

  delay(3000); // safeguard delay

  LEDS.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);

}

void loop() {
  poti1val = analogRead(poti1);
  poti2val = analogRead(poti2);
  poti3val = analogRead(poti3);

  brightness = map(poti1val, 0, 1023, 0, 255);
  hue = map(poti2val, 0, 1023, 0, 255);
  saturation = map(poti3val, 0, 1023, 0, 255);


  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CHSV(brightness, hue, saturation);
  }
  FastLED.show();
  delay(10);
}