65 seat upholstery

[dhimme1045]

Have a 65 SS with Charcoal Blue/Slate 2 tone interior. Been wanting to recover my seats for a long time now, but can't find the correct colors. Any suggestions on where to look appreciated. Several roads lead to SMS and to Legendary, but colors aren't right and frankly getting harder to find accurate information. Seems like most have substituted 2 tone blue for replacement. I suspect many don't know there is a difference. Thanks. Dennis