Which country had a single-coloured flag?

Mauritania
Libya
Saudi Arabia
There was no unicolor flag
The flag of the Libyan Arab Jamahiriya was adopted on 11 November 1977 and consisted of a green field. It was the only national flag in the world with just one color and no design, insignia, or other details. It was changed in 2011.
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Very interesting!
reach: rather globalAfricaArabiacountriesflagsgeography

Answers by country

Mauritania
Libya
Saudi Arabia
There was no unicolor flag
answers
flagItaly
9%
75%
3%
11%
61
flagRepublic of Ireland
7%
65%
0%
26%
38
flagGreece
15%
61%
11%
11%
44
flagAustralia
13%
60%
9%
13%
43
flagRomania
6%
60%
6%
26%
15
flagthe United States
10%
52%
11%
24%
364
flagthe Netherlands
22%
45%
12%
19%
31
flagSwitzerland
17%
44%
13%
25%
52
flagPoland
17%
41%
15%
25%
13599
flagGermany
14%
41%
16%
27%
585
flagthe United Kingdom
21%
41%
8%
28%
246
flagIndia
11%
36%
21%
30%
88
flagFrance
19%
34%
23%
23%
26
flagIsrael
14%
28%
19%
33%
21
flagAustria
20%
26%
24%
27%
97
flagCanada
13%
22%
14%
50%
76
flagLithuania
57%
21%
7%
14%
14
flagNigeria
12%
18%
18%
50%
16
flagEgypt
62%
12%
6%
18%
16
flagSpain
28%
7%
28%
35%
14