//
// Returns a darkened color when $text-color is a light color,
// or a lightened color when $text-color is dark.
//
@function get-hover-color($text-color) {
  @if (lightness($text-color) > 50) {
    @return darken($text-color, 25%);
  } @else {
    @return lighten($text-color, 40%);
  }
}