bjj comps question

guys, i've never competed in a bjj comp and was wondering,

do you have to wear the same color top as bottom?

thanks in advance.

It is with a lot of love and respect for BJJ that I say the following.  Consistency of rules and interpretation is FORBIDDEN  in BJJ, thus every competition and referee will have different rules.  That being said I don' t think it'd be a problem at most competitions...

some comps have it in their rule book that the top and bottom must match