Searching for Cobble Stone Hardie Board houses in Minnesota? Cobblestone is the warm shade of taupe that’s a natural. Grounded and earthy, the Cobble Stone James Hardie siding color is a neutral tone that plays well with others. Looking for a neutral shade that blends effortlessly with a range of accent colors? Dress up Cobblestone with Iron Gray for dramatic flair. Pair Cobblestone with soft neutrals to lend a more casual and welcoming vibe. Either way, Cobblestone always makes the shortlist.