# File lib/sass/script/functions.rb, line 361
    def rgb(red, green, blue)
      assert_type red, :Number
      assert_type green, :Number
      assert_type blue, :Number

      Color.new([red, green, blue].map do |c|
          v = c.value
          if c.numerator_units == ["%"] && c.denominator_units.empty?
            v = Sass::Util.check_range("Color value", 0..100, c, '%')
            v * 255 / 100.0
          else
            Sass::Util.check_range("Color value", 0..255, c)
          end
        end)
    end