upper triangle (hoist side) is green and the
lower triangle is red
note: uses the popular pan-African colors of Ethiopia

Cook Islands
blue, with the flag of the UK in the upper hoist-side
quadrant and a large circle of 15 white five-pointed stars (one for
every island) centered in the outer half of the flag

Coral Sea Islands
the flag of Australia is used

Costa Rica
five horizontal bands of blue (top), white, red (double
width), white, and blue, with the coat of arms in a white elliptical
disk on the hoist side of the red band; above the coat of arms a
light blue ribbon contains the words, AMERICA CENTRAL, and just
below it near the top of the coat of arms is a white ribbon with the
words, REPUBLICA COSTA RICA

Cote d'Ivoire
three equal vertical bands of orange (hoist side),
white, and green
note: similar to the flag of Ireland, which is longer and has the
colors reversed - green (hoist side), white, and orange; also
similar to the flag of Italy, which is green (hoist side), white,
and red; design was based on the flag of France

Croatia
three equal horizontal bands of red (top), white, and blue
superimposed by the Croatian coat of arms (red and white checkered)

Cuba
five equal horizontal bands of blue (top, center, and bottom)
alternating with white; a red equilateral triangle based on the
hoist side bears a white, five-pointed star in the center

Cyprus
white with a copper-colored silhouette of the island (the
name Cyprus is derived from the Greek word for copper) above two
green crossed olive branches in the center of the flag; the branches
symbolize the hope for peace and reconciliation between the Greek
and Turkish communities
note: the "Turkish Republic of Northern Cyprus" flag has a white
field with narrow horizontal red stripes positioned a small distance
from the top and bottom edges between which is centered a red
crescent and a red five-pointed star

Czech Republic
two equal horizontal bands of white (top) and red
with a blue isosceles triangle based on the hoist side
note: identical to the flag of the former Czechoslovakia

Denmark
red with a white cross that extends to the edges of the
flag; the vertical part of the cross is shifted to the hoist side;
the banner is referred to as the Dannebrog (Danish flag)
note: the shifted design element was subsequently adopted by the
other Nordic countries of Finland