Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

$scheme-one:(
  primary: red,
  secondary: blue,
  tertiary: green
);

$scheme-two:(
  primary: #fff,
  secondary: #ff0000,
  tertiary: #222
);

@mixin colors( $colors ) {
  $c-primary: map-get( $colors, primary ) !global;
  $c-secondary: map-get( $colors, secondary ) !global;
  $c-tertiary: map-get( $colors, tertiary ) !global;
}

@include colors( $scheme-one );

.scheme-one {
  primary: $c-primary;
  secondary: $c-secondary;
  tertiary: $c-tertiary;
}

@include colors( $scheme-two );

.scheme-two {
  primary: $c-primary;
  secondary: $c-secondary;
  tertiary: $c-tertiary;
}

SassMeister-output.css

.scheme-one {
  primary: red;
  secondary: blue;
  tertiary: green;
}

.scheme-two {
  primary: #fff;
  secondary: #ff0000;
  tertiary: #222;
}