RGB coloring of mesh

Hi all

I have a mesh structure . I have two arrays. One has dimensions (186530, 6). where 6 represents color of two faces. I also have array which has shape (186530, 1) which is a feature IDs. When I try to visualize in paraview, I can color by the second array but cannot see the rgb face colors. Can someone help me with this small issue.

Best Adi