# File lib/highline/string_extensions.rb, line 70 def rgb(*colors) color_code = colors.map{|color| color.is_a?(Numeric) ? '%02x'%color : color.to_s}.join raise "Bad RGB color #{colors.inspect}" unless color_code =~ /^[a-fA-F0-9]{6}/ color("rgb_#{color_code}".to_sym) end