Can't find out what is wrong in the code

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**

<style>
.red-text {
  color: rgb(225, 0, 0);
}
.orchid-text {
  color: rgb(218, 112, 214);
}
.sienna-text {
  color: rgb(160, 82, 45);
}
.blue-text {
  color: rgb(0, 0, 225);
}
</style>

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

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

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

<h1 class="blue-text">I am blue!</h1>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.3 Safari/605.1.15

Challenge: Use RGB to Mix Colors

Link to the challenge:

Some of your colors are off, the numbers are off. You’ve written 225 when you should wright 255.