# File lib/compass/sass_extensions/functions/colors.rb, line 51 def ie_hex_str(color) assert_type color, :Color alpha = (color.alpha * 255).round alphastr = alpha.to_s(16).rjust(2, '0') Sass::Script::String.new("##{alphastr}#{color.send(:hex_str)[1..-1]}".upcase) end