Match the flag band
Five rounds per game with five distinct random flags. Tune hue, saturation, and brightness—the highlighted region updates on the flag. Score each guess by perceptual distance (ΔE).
Progress
Round 1 / 5
Score
0 pts
Score
0 pts
Target band
Moldova
Match this band
Tune the sliders—the flag updates live.
Your selection
H200 S55 B70
200°
55%
70%
More to play
Try another quick game
How to use Flag Tone
One Classic game is 5 rounds. Each round picks a distinct random flag and target band—no repeats in the same game; match its true color with the sliders while the flag preview updates—no hex cheats.
- 1Study the flag — the left panel shows which band to match; other regions stay at their true colors.
- 2Adjust H, S, and B — the right preview updates live. Hue is color angle, saturation is intensity, brightness is how bright the color feels.
- 3Submit your guess — you'll see how far off you were and your points for that round.
- 4Play all 5 rounds — then review every target next to your pick on the results screen.
- 5Start over anytime — use New game or Play again for a fresh set of distinct random flags and bands.
Flag Tone FAQ
In Flag Tone, what is ΔE (delta E), in simple terms?
In Flag Tone, after you submit, ΔE is one number that says how different your color is from the target—like a distance score. Lower is better: small ΔE means the two colors are very similar; big ΔE means they're far apart. You don't need Flag Tone's scale memorized—just know Flag Tone uses it to measure "how far off" you were.
Technical note: Flag Tone converts both colors into a standard color space (CIELAB) that lines up better with human vision than raw screen pixels, then takes the straight-line distance between them. In Flag Tone, that distance is what we call ΔE here.
In Flag Tone, what are pts (points)?
In Flag Tone, pts are your Flag Tone game score in plain numbers. Each turn in Flag Tone, you can earn up to 100 pts depending on how close you got. The Flag Tone number at the top is your running total across turns you've already finished. When Flag Tone's all 5 turns are done, the best possible total is 500 pts (100 × 5).
In Flag Tone, how is one turn’s score (pts) calculated?
In Flag Tone, when you press Submit guess, Flag Tone compares your color to the target, gets one ΔE for that turn, then turns ΔE into pts using this Flag Tone rule:
pts for this turn = round( max(0, 100 − 2 × ΔE) )
In words for Flag Tone: the farther off you are (bigger ΔE), the fewer pts; a near-perfect Flag Tone match (ΔE near 0) is close to 100 pts. Flag Tone scores cannot go below 0.
Flag Tone examples: ΔE ≈ 0 → about 100 pts; ΔE = 10 → 80 pts; ΔE = 25 → 50 pts.
Why does Flag Tone use sliders (HSB) instead of typing a hex code?
Flag Tone wants you to look at color and nudge it like you would in a design app—warmer, cooler, stronger, softer, darker, lighter. Hex codes stay in the background so the challenge stays visual.
What happens if you stare at the flag long enough?
Nothing—unless you mean press long enough. During a round, hold your pointer on the flag preview for five full seconds without letting up. The true colors appear; release and Flag Tone hides them again. We keep that one out of the main board on purpose—spoilers travel faster down here in the FAQ.
Are Flag Tone’s flag colors official government specifications?
No. In Flag Tone, flag geometry and colors are reference illustrations for the game—not certified official specs, Pantone drop-ins, or manufacturing standards from any country or organization. Flag Tone is an independent game and is not affiliated with or endorsed by any government, sports body, or standards agency.
Displays, browsers, and night mode can all shift how a color looks. Some places also have non-copyright rules about how flags may be shown; that is separate from Flag Tone’s game use. If you need legally binding colors or usage guidance for print, uniforms, or public display, follow the relevant authority in your jurisdiction.
