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diff --git a/lib/axlsx/stylesheet/color.rb b/lib/axlsx/stylesheet/color.rb
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+module Axlsx
+  # The color class represents a color used for borders, fills an fonts
+  class Color
+    # Determines if the color is system color dependant
+    # @return [Boolean]
+    attr_accessor :auto
+    
+    # Backwards compatability color index
+    # return [Integer]
+    #attr_accessor :indexed
+
+    # The color as defined in rgb terms. 
+    # @note 
+    #  rgb colors need to conform to ST_UnsignedIntHex. That basically means put 'FF' before you color
+    # @example rgb colors
+    #  "FF000000" is black
+    #  "FFFFFFFF" is white
+    # @return [String]
+    attr_accessor :rgb
+
+    # no support for theme just yet
+    # @return [Integer]
+    #attr_accessor :theme
+    
+    # The tint value.
+    # @note valid values are between -1.0 and 1.0
+    # @return [Float]
+    attr_accessor :tint
+    
+    # Creates a new Color object
+    # @option options [Boolean] auto
+    # @option options [String] rgb
+    # @option options [Float] tint    
+    def initialize(options={})
+      @rgb = "FF000000"
+      options.each do |o|
+        self.send("#{o[0]}=", o[1]) if self.respond_to? o[0]
+      end
+    end
+    
+    def auto=(v) Axlsx::validate_boolean v; @auto = v end    
+    def rgb=(v) Axlsx::validate_string v; @rgb = v end    
+    def tint=(v) Axlsx::validate_float v; @tint = v end
+
+    # This version does not support themes
+    # def theme=(v) Axlsx::validate_unsigned_integer v; @theme = v end    
+    
+    # Indexed colors are for backward compatability which I am choosing not to support
+    # def indexed=(v) Axlsx::validate_unsigned_integer v; @indexed = v end     
+
+
+    # Serializes the color
+    # @param [Nokogiri::XML::Builder] xml The document builder instance this objects xml will be added to.
+    # @return [String]
+    def to_xml(xml) xml.color(self.instance_values) end
+  end
+end