title: Is it possible to use native css functions in sass?
body: <p>The root of my problem is using CSS4 variables with css functions that is overridden by SASS mixins.</p>
  
  <p>SASS overrides <code>rgb</code> and <code>rgba</code> to help with passing hex to them, for instance. Problem is I am using the new CSS4 spec which allows for variables. </p>
  
  <p>What I want to do is:</p>
  
  <pre><code>background-color: rgba(var(--theme-color, 0.5)
  </code></pre>
  
  <p>Now this would work fine if SASS hadn't taken over and expect a different input.</p>
  
  <p>So is it possible to override this mixin somehow, so I just get it output as a normal css value?</p>