Sass maps usage example

sass_maps.scss

$social-colors: (
  dribbble: #ea4c89,
  facebook: #3b5998,
  github: #171515,
  google: #db4437,
  twitter: #55acee
);

.social-link {
  color: white;
}

@each $social-network, $social-color in $social-colors {
  .social-link--#{$social-network} {
    background: $social-color;
  }
  .social-link--#{$social-network}:hover {
    background: lighten($social-color, 10%);
  }
}