Adjust the Tone of a Color man

i cant figure wt you guys mean by change s and l to 80$ and 25%

Your code so far

  header {
    background-color: hsl(180, 90%, 35%);
    color: #FFFFFF;
  nav {
   background-color:hsl(180, 90%, 35%);
    color: #FFFFFF;
  h1 {
    text-indent: 10px;
    padding-top: 10px;
  nav ul {
    margin: 0px;
    padding: 5px 0px 5px 30px;
  nav li {
    display: inline;
    margin-right: 20px;
  a {
    text-decoration: none;
    color: inherit;
  <h1>Cooking with FCC!</h1>
      <li><a href="">Home</a></li>
      <li><a href="">Classes</a></li>
      <li><a href="">Contact</a></li>

Your browser information:

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.79 Safari/537.36.

Link to the challenge:

The navigation bar on this site currently inherits its background-color from the header element. Starting with that color as a base, add a background-color to the nav element so it uses the same cyan hue, but has 80% saturation and 25% lightness values to change its tone and shade.

You need to change the saturation and lightness of your Nav Background color.