Hex to Pantone Converter. Here is a simple online tool to convert the color values from Hexadecimal to Pantone colors. You can use this calculator to find the corresponding pantone color for a given hexadecimal color. You can also enter the color distance value to get more accurate results. The color distance is defined as the difference or distance between two colors and is measure as the metric of interest in color science. The calculation of pantone colors is useful in various industries such as printing, in the manufacture of colored paint, fabric, and plastics.