Generated by SassMeister.com.

SassMeister-input.scss

// ----
// Sass (v3.4.21)
// Compass (v1.0.3)
// ----

// http://sass-lang.com/documentation/Sass/Script/Functions.html#rgba-instance_method 


// - (Sass::Script::Value::Color) rgba($color, $alpha)
// Sets the opacity of an existing color.

// Examples:

// rgba(#102030, 0.5) => rgba(16, 32, 48, 0.5)
// rgba(blue, 0.2)    => rgba(0, 0, 255, 0.2)


element {
  border: 1px solid color(black ,50%);
}

SassMeister-output.css

element {
  border: 1px solid color(black, 50%);
}