Wella formula for a rich burgundy red

[Me2807]

Hi Guys,
I just wondered if anyone had a good formula to create a rich burgundy red colour. My client is currently a light brown 6/7 wella KP and she is a natural base of 6. He hair has some khaki tones but she would like to achieve the colour in the photo. Tia xx

 

[Me2807]

I can't seem to upload the picture as the file is too big