Generated by SassMeister.com.

SassMeister-input-HTML.html

<div class='orange'></div>
<div class='red'></div>
<div class='blue'></div>
<div class='green'></div>

SassMeister-input.scss

// ----
// Sass (v3.4.13)
// Compass (v1.0.3)
// ----

$color: #ed2;

@function pxify($value) {
	@return unquote($value + 'px')
}
div {
  width: 100px;
  height: 100px;
  border: 1px solid black;
}
.orange {
	background-color: $color;
}

.red {
	background: red;
	width: pxify(red($color));
	float: left;
}

.green {
	background: green;
	width: pxify(green($color));
	float: left;
}
.blue {
	background: blue;
	width: pxify(blue($color));
	float: left;
}

SassMeister-output.css

div {
  width: 100px;
  height: 100px;
  border: 1px solid black;
}

.orange {
  background-color: #ed2;
}

.red {
  background: red;
  width: 238px;
  float: left;
}

.green {
  background: green;
  width: 221px;
  float: left;
}

.blue {
  background: blue;
  width: 34px;
  float: left;
}

SassMeister-rendered.html

<div class='orange'></div>
<div class='red'></div>
<div class='blue'></div>
<div class='green'></div>