@fanzheng sorry for the super late reply! All the patterns posted on the website use Hex color codes. You can see the actual color values when you click "add a variation" or you can change the colors to something different. Conversion charts for Hex to DMC can be found using google. But rather than purchasing each individual color pictured, I just look through my string collection to find colors that are similar tones and still look nice together. I don't think it's necessary to match exactly 😊