Wolf created with HueForge in 5 colors, I have carried out tests with different colors but in the end I have stayed with this combination. But you can test by substituting brown for gray, or different shades of red or orange.

Print at 100% infill with a layer height of 0.08mm with a base layer of 0.24mm

Filaments Used:
PLA Protopaste Black Transmission Distance: 0.5
PLA Protopasta Bottle Brown Transmission Distance: 15
PLA PolyTerra Lava Red Transmission Distance: 1
PLA PolyLite Pro Orange Transmission Distance: 7.5
PLA PolyTerra Cotton White Transmission Distance: 2.5

Swap Instructions:
Start with Black
At layer #5 (0.56mm) swap to Bottle Brown
At layer #12 (1.12mm) swap to Lava Red
At layer #21 (1.84mm) swap to Orange
At layer #27 (2.32mm) swap to Cotton White for the rest.