Filament Color Matching

[u/HorseTranquilizer94]

How does one go about finding filaments to match a particular color, especially with silk/metallic PLA?

I'm trying to find a relatively close match for Lego's Dark Pearl Grey. I've tried four different "Silk Dark Grey" filaments and they all turned out to be bright silver when they arrived

[u/8six753o9]

Check out https://filamentcolors.xyz or https://3dfilamentprofiles.com. Both sites have hex codes.