Manihiki

The flag of Manihiki, Cook Islands, consists of a horizontal tricolor of black, white, and yellow, a red triangle on the hoist side, and a seal in the center of the triangle. https://www.crwflags.com/fotw/flags/ck-mani.html 
==References==
Category:Cook Islands
Category:Black
Category:White
Category:Yellow
Category:Red
Category:Chevron
Category:Proportions 1-2
Category:Tricolour