$palette: (
  'orange': (
    'light': lighten(#f89c48, 10%),
    'base': #f89c48,
    'dark': darken(#f89c48, 10%)
  ),
  'green': (
    'light': lighten(#28ba00, 10%),
    'base': #28ba00,
    'dark': darken(#28ba00, 10%)
  )
);

.selector {
  background-color: map-get(map-get($palette, 'orange'), 'base');
  border-color: map-get(map-get($palette, 'orange'), 'dark');
  color: map-get(map-get($palette, 'green'), 'base');
}