>>12881019Fennekin is based on a Fennec Fox. They are usually sandy colpoured. Sand is usually pale yellow/brown.
For stylisation, Fennekin is yellow. It's a cartoon style, basically. Colourful, saturated.
Its evo will obviously gain more features, details and colours as it evolves. much like other Pokemon, let's use Charmander line, they get paler as they evolve.
Red > Orange > Pale Orange for Charmander's line.
Pale Yellow, plus this design in OP's pic is obviously a ghost type. So Ghosts are usually represented with dark blue/purple.
THERE YOU FUCKING FAGGOT. 10/10 for making me type this much.