Generated by SassMeister.com, the Sass playground.

SassMeister-input.scss

// ---
// Sass (v3.2.9)
// ---


$color-one: red;
$color-two: blue;

@mixin color($prefix, $colors) {
    @each $color in $colors {
     .#{$prefix}--#{nth($color, 1)} { background: #{nth($color, 2)}; }
    }
}

@include color('classname', (one $color-one, two $color-two));

SassMeister-output.css

.classname--one {
  background: red;
}

.classname--two {
  background: blue;
}