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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

              @import "compass/css3";

// Ever wanted to know what would be the color operations to apply to a color 
// in order to find a second color, just out of curiosity?
// Like, "how to programmatically go from #BADA55 to #B0BCA7"?
// --------------------------------------------------------------------------------
// @param (color) $a: first color
// @param (color) $b: second color
// --------------------------------------------------------------------------------
// @return (map) returns the color operations to do in order to find $b from $a
//   where keys are the color functions to apply
//   and values are the values to pass to these functions
@function color-diff($a, $b) {
  $sat: saturation($a) - saturation($b);
  $lig:  lightness($a) -  lightness($b);
  $fn-sat: if($sat > 0, 'desaturate', 'saturate');
  $fn-lig: if($lig > 0, 'darken', 'lighten');
  @return (
    adjust-hue: -(hue($a) - hue($b)),
    #{$fn-sat}: abs($sat),
    #{$fn-lig}: abs($lig)
// Apply differences returned from `color-diff` function to a color
// In order to retrieve the second color
// --------------------------------------------------------------------------------
// @param (color) $color: color to transform
// @param (map) $diff: diff map
// --------------------------------------------------------------------------------
// @return (color) transformed color
@function apply-diff($color, $diff) {
  // We call the $key (function), 
  // passing the $color and the $value as parameters
  // e.g. `call(adjust-hue, #BADA55, 42)`
  @each $key, $value in $diff {
    $color: call($key, $color, $value);
  @return $color;
// --------------------------------------------------------------------------------
// Example
// --------------------------------------------------------------------------------
// Pick two random colors
$a: #BADA55;
$b: #B0BCA7;
// Calculate the diff map between those 2
$diff: color-diff($a, $b);
// This is a map looking like this:
// $diff: (
//   adjust-hue: 42,
//   saturation: 13.37%,
//   lightness: 1.5%
// );
// Apply the diff to one of the two colors to find the second one
$c: apply-diff($a, $diff); 
// Is everything okay?
sass {
  a: $a;
  b: $b;
  c: $c; // $b == $c, awesome!
// Visual representation if you prefer
// left part is $a
// middle part is $b
// third part is $c, generated from $a
html {
  background: -webkit-linear-gradient(left, $a 33%, $b 33%, $b 66%, $c 66%);
  height: 100%;
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