There are various possible synonyms that can be used to describe the color combination of "pearl platinum fox". Some options might include "pearlescent silver fox", "platinum silver fox", or even "frosty pearl fox". These descriptions all convey an icy, cool-toned aesthetic that is typical of silver and grey colors. Alternatively, one could focus more on the "pearl" aspect of the color and use descriptors such as "pearlescent pearl fox" or "pure white pearl fox". Regardless of the specific word choice, the overall impression is one of elegance, sophistication, and refinement.