heygrady/scss-blend-modes — pull request #1 by pixelwhip (2012-08-13 13:10:21+00:00)
Title: Namespace collision with $red, $green and $blue

Thanks for the great mixins. I received errors when trying to pass in color variables named $red, $green or $blue. I replaced those internal variable names in the mixins with $bm-red, $bm-green or $bm-blue and all is well again.

For reference the error was "Line 189 of sass/partials/_blend-mode.scss: 163.75 is not a color for `red'"