Vexillology: Flag Color Quiz
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The flag is not shown: work it out from its colours, a crop or a sentence.
- Downloads
- 5+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Sep 17
- 2026 · v1.0.6
Screenshots
About Vexillology: Flag Color Quiz
🎨 THE FLAG IS NOT SHOWN. IT IS DISTILLED.
You never see the flag. You see its colours with the share of area each one takes, or a small piece of it, or a sentence that describes it. From that, you work out the country.
It is a flag quiz for people who already know the flags.
🎨 PALETTE
The colours as bars, each one as long as the area it covers, with its percentage beside it. Nothing else: no shapes, no stripes, no emblem. The percentage is part of the question, not decoration — without it, Austria and Denmark would be the same question.
🇷🇴 NEAR-IDENTICAL
Four flags that really do look alike, each drawn at its true ratio. Chad or Romania. Indonesia or Monaco. The groups are not a hand-written list: they come from measuring the colour distance between every pair of flags.
🔍 CROP
A small piece of the flag, at full size. Sometimes it is obvious. Sometimes it is a rectangle of one colour and you are on your own.
🎭 FALSE FLAG
Four versions of the same flag. One is the real one and three have been altered: mirrored, with two of its colours swapped, or with one colour in another shade. You point at the real one. Every alteration is derived from the flag itself and checked twice — that it can be seen, and that it is not the flag of another country. Afterwards the card tells you what each fake had.
💬 QUESTIONS
A sentence instead of an image: which flag has 27 stars? And the other way round too — you get the country and pick the fact.
🗂️ DOSSIER
Three true clues about one flag — three stripes, no white anywhere, a canton in the corner — and only one flag fits all three. No clue is padding: take any one away and a second flag would fit. Every clue is derived from the flag itself. And the other way round too: you get the country and pick its dossier.
🔢 2715 IN TOTAL
That is how many questions there are, and it is not one per flag: the same flag comes back as a palette, as a crop, inside a group of near-identical ones and inside a sentence. Every one of them has exactly one right answer.
📇 THE COUNTRY CARD
After each answer: the name, the exact hex of each colour with its share, the official ratio and the date the design was adopted — with the source it comes from. What is not documented is left blank, and the game never asks about it.
📅 DAILY CHALLENGE
The same mode and the same questions for everybody, every day. One round. Keep the streak going.
🏆 MARKS, ACHIEVEMENTS AND YOUR WORST COUNTRIES
Best score, best streak and best time are kept per mode. The game also counts which countries you get wrong most often, and tells you.
🌍 195 FLAGS · ✈️ OFFLINE
Everything travels inside the app. No connection, no accounts, no sign-up, and nothing is downloaded while you play.
The flags are the same ones you already know. The question is whether you know them without looking.
You never see the flag. You see its colours with the share of area each one takes, or a small piece of it, or a sentence that describes it. From that, you work out the country.
It is a flag quiz for people who already know the flags.
🎨 PALETTE
The colours as bars, each one as long as the area it covers, with its percentage beside it. Nothing else: no shapes, no stripes, no emblem. The percentage is part of the question, not decoration — without it, Austria and Denmark would be the same question.
🇷🇴 NEAR-IDENTICAL
Four flags that really do look alike, each drawn at its true ratio. Chad or Romania. Indonesia or Monaco. The groups are not a hand-written list: they come from measuring the colour distance between every pair of flags.
🔍 CROP
A small piece of the flag, at full size. Sometimes it is obvious. Sometimes it is a rectangle of one colour and you are on your own.
🎭 FALSE FLAG
Four versions of the same flag. One is the real one and three have been altered: mirrored, with two of its colours swapped, or with one colour in another shade. You point at the real one. Every alteration is derived from the flag itself and checked twice — that it can be seen, and that it is not the flag of another country. Afterwards the card tells you what each fake had.
💬 QUESTIONS
A sentence instead of an image: which flag has 27 stars? And the other way round too — you get the country and pick the fact.
🗂️ DOSSIER
Three true clues about one flag — three stripes, no white anywhere, a canton in the corner — and only one flag fits all three. No clue is padding: take any one away and a second flag would fit. Every clue is derived from the flag itself. And the other way round too: you get the country and pick its dossier.
🔢 2715 IN TOTAL
That is how many questions there are, and it is not one per flag: the same flag comes back as a palette, as a crop, inside a group of near-identical ones and inside a sentence. Every one of them has exactly one right answer.
📇 THE COUNTRY CARD
After each answer: the name, the exact hex of each colour with its share, the official ratio and the date the design was adopted — with the source it comes from. What is not documented is left blank, and the game never asks about it.
📅 DAILY CHALLENGE
The same mode and the same questions for everybody, every day. One round. Keep the streak going.
🏆 MARKS, ACHIEVEMENTS AND YOUR WORST COUNTRIES
Best score, best streak and best time are kept per mode. The game also counts which countries you get wrong most often, and tells you.
🌍 195 FLAGS · ✈️ OFFLINE
Everything travels inside the app. No connection, no accounts, no sign-up, and nothing is downloaded while you play.
The flags are the same ones you already know. The question is whether you know them without looking.
What’s new
Version 1.0.6 · Updated September 17, 2026
🎭 TWO NEW MODES 🕵️ DOSSIER Three true clues, and only one flag matches all three. "It has blue. It has no stars. It is a tricolour." Work out the country without ever seeing it. 🎭 FALSE FLAG Four versions of the same flag: one real, three altered — mirrored, two colours swapped, stripes reordered or the whole flag turned. Point at the real one. 🔢 Now 6 modes and 2,715 questions across all 195 flags.
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| App | Rating | Price | Installs | Last updated |
|---|---|---|---|---|
| Vexillology: Flag Color Quiz | – | Free | 5+ | Sep 17, 2026 |
| Hitori - Logic Puzzle | – | Free | 5+ | Sep 8, 2026 |
| Mancala Kalah: Congklak | – | Free | 10+ | Sep 6, 2026 |
| Chinese Checkers Classic Halma | – | Free | 10+ | Sep 3, 2026 |
| Air Hockey Classic & Arcade | – | Free | 100+ | Aug 21, 2026 |
| Minesweeper Classic Offline | – | Free | 10+ | Jul 23, 2026 |
| Bullet Hell: Starhail | – | Free | 10+ | Jul 22, 2026 |