Custom Stack bar chart

[Rashmi1]

Hi Team,

I am trying create a stacked bar chart as below. The legends are based on a field called brand , each brand has a pack size field. The challenge I am facing is I am unable to split the brand by pack size field and the color legend should be based on the pack size + Brand. 

Can you let me know if there is a custom visual for this or can it be achieved somehow ?

Thank you