Navy or most types of blue but NOT PINK it's just not my favorite on chestnuts
Some reds looks really nice, as well as navy blue, royal blue and grey 😊
Maroon, burgundy, and corn flower blue
Hunter green navy blue and burgundy
Bordeaux red , Creme white ,cobalt blue, salmon-coloured,
Black , white , yellow, dark grey
I own a chestnut and these are the colours that I personally thing suits him best.
I always like red with chestnuts