Generated by SassMeister.com.

SassMeister-input-HTML.html

<div class='color'></div>
<div class='color-dark'></div>
<div class='color-darker'></div>

SassMeister-input.scss

// ----
// Sass (v3.4.12)
// Compass (v1.0.3)
// ----

$color: #0062ae;
$color-20: shade($color, 20%);
$color-40: shade($color, 40%);

.color {
  background-color: $color;
  height: 50px;
  width: 50px;
  margin: 10px;
}

.color-dark {
  background-color: $color-20;
  height: 50px;
  width: 50px;
  margin: 10px;
}

.color-darker {
  background-color: $color-40;
  height: 50px;
  width: 50px;
  margin: 10px;
}

SassMeister-output.css

.color {
  background-color: #0062ae;
  height: 50px;
  width: 50px;
  margin: 10px;
}

.color-dark {
  background-color: #004e8b;
  height: 50px;
  width: 50px;
  margin: 10px;
}

.color-darker {
  background-color: #003a68;
  height: 50px;
  width: 50px;
  margin: 10px;
}

SassMeister-rendered.html

<div class='color'></div>
<div class='color-dark'></div>
<div class='color-darker'></div>