The archive contains all 43 color cards available on the manufacturer website. Information about colors was taken with an eyedropper from the images of the site. Also in the archive you will find all the cards you need to customize the material, as well as 3 different AO cards for more flexible customization. Real texture size 85 x 85 mm.
Manufacturer website: https://www.maharam.com/products/merit/colors/031-starfish 

polys: 262 144
verts: 263 169

For Corona render, it is recommended to install a version not lower than 1.5, since the glossiness of the materials is adjusted taking into account PBR.