Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.3.0.rc.2)
// Compass (v1.0.0.alpha.17)
// ----

$turquoise: #000000;
$green-sea: #ffffff;

@mixin calc-color($first-color, $second-color) {
  .palette-#{$first-color} {
    background-color: #{$first-color};
  }
  .palette-#{$second-color} {
    background-color: #{$second-color};
  }  
}

@include calc-color('turquoise', 'green-sea');

// should be:
// .palette-turqoise {
//    background-color: #000000;
// }
// .palette-green-sea {
//    background-color: #ffffff;
// }

SassMeister-output.css

.palette-turquoise {
  background-color: turquoise;
}

.palette-green-sea {
  background-color: green-sea;
}