Usage: color: pallette(white, base);

pallette.scss

// pallette

// this code should be in variables file
$palettes: (
  white: (
    base: #FFFFFF,
    off: #EDEEEF,
  ),
  black: (
    base: $base-black,
    text: #2C3E50,
    light: #4C4E56,
  )
);

// @see https://twitter.com/thecodezombie/status/595977653296996354/photo/1
@function palette($palette, $tone: 'base') {
  @return map-get(map-get($palettes, $palette), $tone);
}