How to stop LED from lighting up above distance with arduino?

Question

How do I light up the LED on the Arduino ONLY when the distance is below 7 feet (213 cm)? When I run the program, the LED stays lit up even after an object has moved away from it.

Here is my Arduino design: https://www.tinkercad.com/things/hWjCeMzBFMG-swanky-habbi

And this is my code:

const int trigPin = 9;
const int echoPin = 10;
const int outPin = 6;
float duration, distance;

void setup() { 
 pinMode(trigPin, OUTPUT); 
 pinMode(echoPin, INPUT); 
 Serial.begin(9600); 
} 

void loop() { 
 digitalWrite(trigPin, LOW); 
 delayMicroseconds(2); 
 digitalWrite(trigPin, HIGH); 
 delayMicroseconds(10); 
 digitalWrite(trigPin, LOW); 
 duration = pulseIn(echoPin, HIGH); 
 distance = (duration*.0343)/2;

 if (distance <= 213) {
  digitalWrite(outPin, HIGH);
 }else {
  digitalWrite(outPin, LOW); 
 }

 Serial.print("Distance: "); 
 Serial.println(distance);
 delay(1);
} 

I'm new to Arduino, and any help would be greatly appreciated.