I have a proble with css colors rgb

Programming HTML-CSS
1

why it doesnt work, such an easy task

  **Your code so far**


<style>
.red-text {
  color: rgb (255,0,0) ;
}
.orchid-text {
  color: #000000;
}
.sienna-text {
  color: #000000;
}
.blue-text {
  color: #000000;
}
</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_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36

Challenge: Use RGB to Mix Colors

Link to the challenge:

2 
.orchid-text {
  color: #000000;
}
.sienna-text {
  color: #000000;
}
.blue-text {
  color: #000000;
}

You need to change color values to rgb for the above classes as well.