There are many, many different kinds of Christian leader. I have been part of the US Christian culture for nearly 6 decades and am not aware of any special color schemes required of all Christian leaders. This seems to be a denomination-specific question rather than a question for the very general "Christianity" category. Try changing the category to some specific denominations to see if you can find an answer there.
The Christian leader is Jesus Christ.
There are no specific colours you have to wear, but you should wear cheerful colours.
Villains wear black but sometimes they wear different colours so they are not identified, but thats only when they are out. But most of the time they all wear black or dark colours. that is my answer to you all !
if you mean christian leader its Jesus
they where orange
White. Dark colours absorb heat, light colours reflect the heat.
to show what event in the church is having
Emo's don't often wear colours like yellow or orange although some emo's do wear neon colours but stereotypically they where dark colours like grey, black navy blue. Although If you wear all black you can be stereotypically classed as Goth although goth's don't all wear black.
jesters would wear bright colours to stand out
pink
Green
Black.