Mine is usually the dark reddish brown, because my own hair is dark brown and I don't like the other dark brown colour as it looks kind of greyish to me, but recently I made it sky blue since it's my favourite colour.
I have three towns! In North it's dark brown, closest to my natural colour; in Paprika, it's the light golden brown; and in Ginkgo, it's light green, the "colour of new leaves".
it's plain brown right now because i haven't unlocked shampoodle yet. in my old town i'd switch between black, tea, and light tea but since then i've dyed my hair in real life a lot so i plan on using pink, light blue, light green,and white more to match the different phases my hair has been through.