style.css

body {
  background-color: black;
}


.rgb-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 15px;
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
}

.color-box {
  display: flex;
  margin: 15px;
}

.hex-text{
  background-color: white;
  width: 200px;
  text-align: center;
  font-family: 'Roboto', sans-serif;
  font-size: 40px;
  opacity: 0.5;
}

.red {
  background-color: red;
  text-align: center;
  width: 2em;
  height: 1em;
  border: 0.1rem solid  black;
  border-radius: 15%;
}

.green {
  background-color: green;
  text-align: center;
  width: 2em;
  height: 1em;
  color: white;
  border: 0.1rem solid  black;
  border-radius: 15%;
}

.blue {
  background-color: blue;
  text-align: center;
  width: 2em;
  height: 1em;
  color: white;
  border: 0.1rem solid  black;
  border-radius: 15%;
}