Sass/Compass - Convert Hex, RGB, or Named Color to RGBA

Question

This may be Compass 101, but has anyone written a mixin which sets the alpha value of a color? Ideally, I would like the mixin to take any form of color definition, and app

Answer 1

There's also ie-hex-str() for IE's ##AARRGGBB format:

filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#{ie-hex-str(#fdfdfd)}', endColorstr='#{ie-hex-str(#f6f6f6)}',GradientType=0); /* IE6-9 */