While creating list of real flags suitable as symbols for languages, I found two pairs of nearly identical flags: Nordic cross yellow, red (Norn and Old Norse) and Nordic cross green, yellow, blue (Low Saxon and Veps). I was aware of more "twin flags" (Monaco and Indonesia, Romania and Chad...), so I created this gallery to catch them. First I tried to show as many twins as possible, now I list only categories for striped flags. If some category contains only one flag, it should be removed from this list, unless it is Nordic Cross flag.
Terminology:
Flags are nested by colors in English alphabet order. Tricolor flags are nested by their first two basic colors. Basic colors are black, blue, green, red, white and yellow. But it is easy to find flag with desired color regardless of their order. Every tricolor category can contain six permutations of twins. Total number of possible twin flag sets with two or three stripes and six basic colors is 360. How many is used, I have no guess.
I recommend visit Flag Identifier by Ivan Sarajčić for creating "identikit" of flag searched (including twins). For Nordic crosses see also this list from FOTW.
Nordic cross:
Cousins:
Kenya and South Sudan are fimbriated cousins
Nordic cross:
Nordic cross:
Middle red stripe (cousins):
Proposals for Germany (cousins):
Olitopia (alternate history) is cousin
White cross (cousins):
Yellow cross:
Black cross:
Nordic cross:
Green, white, blue:
Blue, white, green:
Cousins:
Green, yellow, blue:
Blue, yellow, green:
Red saltire:
Blue, white, red, white, blue with device
Blue, white, blue with diagonal red stripe
Nordic cross blue, white, red:
Cousins:
Cousins:
Blue border, white cross:
Halved white, blue, red:
Halved blue, white, red:
Red-white stripes, blue canton with white stars (siblings):
Quartered cousins:
Less than cousins:
Cousins:
White cross:
Siblings:
Nordic cross:
Cross from stars:
White saltire:
Siblings:
Blue cross:
Nordic cross:
Blue saltire:
Siblings:
Diagonal stripe:
Two fictious countries:
Nordic cross white, yellow, blue:
Cousins:
Halved blue, white, yellow:
Diagonally divided:
Yellow cross:
Siblings:
Yellow saltire:
Blue cross:
Blue saltire:
Nordic cross:
Baarn (Netherlands) has both striped and crossed cousins
Cross:
Nordic cross green, white, red:
Cousins:
White left, red over green:
Vertically halved red, white, green:
White Nordic cross:
Siblings (mostly saltires):
White device (siblings or cousins?)
Cousins:
Quartered per cross:
Green cross:
Yellow cross:
Saltire:
Yellow harp:
Yellow crescent:
The third color of Hernandarias is maroon or purple?
Nine stripes:
White cross:
Nordic cross:
Greek cross:
Maltese cross:
Saltire:
Red cross:
Siblings
Nordic cross:
Red saltire:
Siblings:
Quartered:
Per saltire:
White star:
Cousins:
Siblings:
Cousins:
Centered cross:
Nordic cross:
Red cross:
Siblings:
Nordic cross:
Horizontally striped
Quartered 5173:
Cousins:
Meaning of numbers see here
Red-white stripes, blue canton with yellow crescent and star (siblings)
Nordic cross
Numbers of directions:
3 | 2 | 1 |
4 | . | 0 |
5 | 6 | 7 |
I am vexillographer
myself. If you want to see my initial list-of-twins design, write a note to me. It was much different and even now it is not perfect. If you have proposlas for another change, write to me. Now you can see more my pages (list is at my Indonesian user page).
While creating list of real flags suitable as symbols for languages, I found two pairs of nearly identical flags: Nordic cross yellow, red (Norn and Old Norse) and Nordic cross green, yellow, blue (Low Saxon and Veps). I was aware of more "twin flags" (Monaco and Indonesia, Romania and Chad...), so I created this gallery to catch them. First I tried to show as many twins as possible, now I list only categories for striped flags. If some category contains only one flag, it should be removed from this list, unless it is Nordic Cross flag.
Terminology:
Flags are nested by colors in English alphabet order. Tricolor flags are nested by their first two basic colors. Basic colors are black, blue, green, red, white and yellow. But it is easy to find flag with desired color regardless of their order. Every tricolor category can contain six permutations of twins. Total number of possible twin flag sets with two or three stripes and six basic colors is 360. How many is used, I have no guess.
I recommend visit Flag Identifier by Ivan Sarajčić for creating "identikit" of flag searched (including twins). For Nordic crosses see also this list from FOTW.
Nordic cross:
Cousins:
Kenya and South Sudan are fimbriated cousins
Nordic cross:
Nordic cross:
Middle red stripe (cousins):
Proposals for Germany (cousins):
Olitopia (alternate history) is cousin
White cross (cousins):
Yellow cross:
Black cross:
Nordic cross:
Green, white, blue:
Blue, white, green:
Cousins:
Green, yellow, blue:
Blue, yellow, green:
Red saltire:
Blue, white, red, white, blue with device
Blue, white, blue with diagonal red stripe
Nordic cross blue, white, red:
Cousins:
Cousins:
Blue border, white cross:
Halved white, blue, red:
Halved blue, white, red:
Red-white stripes, blue canton with white stars (siblings):
Quartered cousins:
Less than cousins:
Cousins:
White cross:
Siblings:
Nordic cross:
Cross from stars:
White saltire:
Siblings:
Blue cross:
Nordic cross:
Blue saltire:
Siblings:
Diagonal stripe:
Two fictious countries:
Nordic cross white, yellow, blue:
Cousins:
Halved blue, white, yellow:
Diagonally divided:
Yellow cross:
Siblings:
Yellow saltire:
Blue cross:
Blue saltire:
Nordic cross:
Baarn (Netherlands) has both striped and crossed cousins
Cross:
Nordic cross green, white, red:
Cousins:
White left, red over green:
Vertically halved red, white, green:
White Nordic cross:
Siblings (mostly saltires):
White device (siblings or cousins?)
Cousins:
Quartered per cross:
Green cross:
Yellow cross:
Saltire:
Yellow harp:
Yellow crescent:
The third color of Hernandarias is maroon or purple?
Nine stripes:
White cross:
Nordic cross:
Greek cross:
Maltese cross:
Saltire:
Red cross:
Siblings
Nordic cross:
Red saltire:
Siblings:
Quartered:
Per saltire:
White star:
Cousins:
Siblings:
Cousins:
Centered cross:
Nordic cross:
Red cross:
Siblings:
Nordic cross:
Horizontally striped
Quartered 5173:
Cousins:
Meaning of numbers see here
Red-white stripes, blue canton with yellow crescent and star (siblings)
Nordic cross
Numbers of directions:
3 | 2 | 1 |
4 | . | 0 |
5 | 6 | 7 |
I am vexillographer
myself. If you want to see my initial list-of-twins design, write a note to me. It was much different and even now it is not perfect. If you have proposlas for another change, write to me. Now you can see more my pages (list is at my Indonesian user page).