#!/usr/bin/env ruby hex = '' rgb = [] red = green = blue = 0 def to_hex n s = n.to_i.to_s(16) s.length == 1 ? '0' + s : s end if ARGV.size == 1 hex = ARGV.first[0,1] == '#' ? ARGV.first[1..-1] : ARGV.first red = hex[0,2].to_i(16) green = hex[2,2].to_i(16) blue = hex[4,2].to_i(16) rgb = [red, green, blue] elsif ARGV.size == 3 rgb = ARGV[0..2] red,green,blue = *rgb if red.index('.') || green.index('.') || blue.index('.') redf, greenf, bluef = red, green, blue red = (255 * red.to_f).to_i green = (255 * green.to_f).to_i blue = (255 * blue.to_f).to_i end hex = [red, green, blue].map {|n| to_hex(n) }.join end redf ||= red.to_f / 255 greenf ||= green.to_f / 255 bluef ||= blue.to_f / 255 puts '#' + hex puts "RGB (#{red}, #{green}, #{blue})" puts "Red:#{redf} green:#{greenf} blue:#{bluef}"