diff --git a/lib/miro/dominant_colors.rb b/lib/miro/dominant_colors.rb
index 8a819ae..ae79788 100644
--- a/lib/miro/dominant_colors.rb
+++ b/lib/miro/dominant_colors.rb
@@ -65,7 +65,8 @@ def downsample_and_histogram
 
     def parse_result(hstring)
       hstring.scan(/(\d*):.*(#[0-9A-Fa-f]*)/).collect do |match|
-        [match[0].to_i, eval("Color::#{Miro.options[:quantize].upcase}").from_html(match[1])]
+        colors = match[1].slice(0..6)
+        [match[0].to_i, eval("Color::#{Miro.options[:quantize].upcase}").from_html(colors)]
       end
     end
 
diff --git a/spec/miro/dominant_colors_spec.rb b/spec/miro/dominant_colors_spec.rb
index 79a26f4..4c9428f 100644
--- a/spec/miro/dominant_colors_spec.rb
+++ b/spec/miro/dominant_colors_spec.rb
@@ -2,6 +2,7 @@
 
 describe Miro::DominantColors do
   context "colors_group method" do
+  let(:command) { double('sommang', run: true) }
   let(:subject) { Miro::DominantColors.new('/path/to/file') }
   let(:mock_source_image) { double('file', :path => '/path/to/source_image').as_null_object }
   let(:mock_downsampled_image) { double('file', :path => '/path/to/downsampled_image').as_null_object }
@@ -22,7 +23,7 @@
 
   before do
     Miro.stub(:histogram?).and_return(false)
-    Cocaine::CommandLine.stub(:new).and_return(double('command', :run => true))
+    Cocaine::CommandLine.stub(:new).and_return(command)
     ChunkyPNG::Image.stub(:from_file).and_return(chunky_png_results)
   end
 
@@ -196,6 +197,15 @@
     it "should end with the less used color" do
       subject.histogram.last[1].should == Color::RGB.from_html('#8F0074')
     end
+
+    context 'command returns invalid colors' do
+      let(:mixed_rgb_rgba) { ['#00112233', '#00112233FF'] }
+      let(:command) { double('sommang', run: mixed_rgb_rgba) }
+
+      it 'keeps the correct number of colors for processing' do
+        subject.histogram
+      end
+    end
   end
 
   describe "#to_hex" do