For Skelly, anything red, brown and/or white. A small hint of blue could be cool if you wanted to match his eye colour

For Felicia, her main colour is blue, so anything that you think would contrast well with her fur(like purples, pinks, light greens maybe?).

And if you want to know their "style"(it's not necessary, just if you need ideas) Skelly is kinda sporty, but anything you think a DJ/music lover would wear. Felicia is just one of those "nice girl who lives next door" kinda ppl so she's pretty open to most things.