Use Hex Code to Mix Colors I am stuck

Tell us what’s happening:
It keeps saying “use the hex code for the color green instead of the word green” but I have already done this and it doesn’t move on. What am I doing wrong?

Your code so far

<style>
  .red-text {
    color: FF0000;
  }
  .green-text {
    color: 00FF00;
  }
  .dodger-blue-text {
    color: #2998E4;
  }
  .orange-text {
    color: #FFA500;
  }
</style>

<h1 class="red-text">I am red!</h1>

<h1 class="green-text">I am green!</h1>

<h1 class="dodger-blue-text">I am dodger blue!</h1>

<h1 class="orange-text">I am orange!</h1>

Your browser information:

Your Browser User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36.

Link to the challenge:
https://www.freecodecamp.org/challenges/use-hex-code-to-mix-colors