Glitch in lesson?

HTML-CSS
1

Tell us what’s happening:
Typed in 1e90ff, (tried a few times and made sure to end with semicolon) and it’s not working. Didn’t have this problem with any of the other hex codes on the page.

Your code so far


<style>
  .red-text {
    color: ff0000;
  }
  .green-text {
    color: 00FF00;
  }
  .dodger-blue-text {
    color: 1e90ff;
  }
  .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:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36.

Link to the challenge:
https://learn.freecodecamp.org/responsive-web-design/basic-css/use-hex-code-to-mix-colors

2

Hi,
you forget to put # in front of the hex codes.

3

put # in front of the hex codes.
like #ff0000 for red and so on