Flag Tone: Match the Flag Color
Play Flag Tone by matching only one highlighted part of a flag. Move hue, saturation, and brightness sliders, watch that flag region change live, then score your guess by Delta E.
Round 1 / 5
H200 S55 B70Play with all flags or focus the next random game on one continent. 100 flags
Match this part
Only the highlighted region changes. The rest of the flag stays fixed so you can judge the color in context.
What Is Flag Tone?
Flag Tone is a browser color guessing game built around world flags. Each round shows a flag and asks you to match one highlighted part of it. The flag updates live as you move the HSB sliders, while the other parts stay unchanged for visual context.
How to Play Flag Tone
- 01
Study the flag and find the highlighted target region. That is the only flag part you need to match.
- 02
Move the hue, saturation, and brightness sliders until the changed flag region looks close to the original color in your memory.
- 03
Submit your guess to reveal the original flag color, your selected color, the Delta E distance, and your points for the round.
- 04
Finish all five Flag Tone rounds. Each game uses distinct flags so the challenge stays quick and varied.
- 05
Review the final target-versus-yours grid, copy a Flag Tone link, or download a PNG result card.
Why only one flag part changes
Changing only one part of the flag makes Flag Tone more precise than a plain swatch game. You compare the target color against real neighboring flag colors, so the task feels closer to design, memory, and color perception practice.
HSB sliders for Flag Tone
Flag Tone uses HSB controls because they are easy to reason about: hue changes the color family, saturation changes intensity, and brightness changes how light or dark the selected flag part feels.
Delta E scoring in Flag Tone
After each Flag Tone guess, the game compares your color with the target using Delta E 2000. Lower Delta E means a closer visual match, and the game converts that distance into a 0-100 round score.
Who Flag Tone is for
Flag Tone is useful for designers, students, geography fans, UI teams, and anyone who wants a fast color perception challenge. It is free, mobile-friendly, and runs directly in the browser.
Flag Tone FAQ
What is Flag Tone?
Flag Tone is an online world flag color guessing game. You match one highlighted part of a flag with HSB sliders and get a score for how close your color is.
How do I play Flag Tone?
Look at the highlighted flag region, adjust hue, saturation, and brightness, submit your guess, then play through five rounds before reviewing your final score.
Does the whole flag change color?
No. In Flag Tone, only the highlighted target part changes. The other flag regions stay fixed so you can compare your guess against the surrounding colors.
How is the Flag Tone score calculated?
Flag Tone measures the Delta E 2000 distance between your selected color and the original flag color, then converts it into points with round(max(0, 100 - 2 x Delta E)).
Are Flag Tone colors official flag specifications?
No. Flag Tone uses screen-based reference colors for education and entertainment. Official flag specifications can vary by source, material, lighting, and display.
Does Flag Tone work on mobile?
Yes. Flag Tone is built for desktop and mobile screens, with responsive flag cards, sliders, and result panels.
Is this Flag Tone page affiliated with other Flag Tone sites?
No. This is an independent Pantone Colors game page and is not affiliated with any other Flag Tone website, government, or standards body.
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Independent educational flag color game
Flag Tone is for education, practice, and entertainment. Flag colors shown here are screen-based approximations, not official government specifications. Pantone is a trademark of Pantone LLC. This website is independent and is not affiliated with or endorsed by Pantone LLC or any other Flag Tone site.