Well his stock gear is bright blue/brown/gold. Hero's are so small in game and stuff happens so fast you really need to be in that color palette for easy recognition. I always just load up game/store/loadout and look at them, spin them around, etc... Good way to see them in good detail.
dev_md and nice big shapes also sells it on small stature heroes, keep in mind the sillouette of characters you're working on. Another tip: design armor that would fit the character type. e.g. Riki wouldn't use heavy armor since he is quick and agile but Chaos Knight would. So lighter armor would be most suitable for him.…