How accurately can your eyes recognize color?
Color Master is more than a simple color quiz—it is a focused training game that measures and improves your ability to spot subtle color differences. With tiered difficulty, endlessly generated questions, and a global ranking system, anyone can sharpen their color perception in short, engaging sessions.

■ Key features at a glance
Three‑step difficulty – Challenger, Master, Grand Master

Fresh questions every time – no two tests are identical

Detailed results – compare your choice with the correct color and see your time

Automatic history – results are saved and can be deleted manually

Global leaderboards – ranked by score and completion time

Offline friendly – recent data cached locally for play without internet

Streamlined UI/UX – clear layout and one‑hand operation

■ Detailed feature breakdown
Granular difficulty modes

Challenger – foundational practice for new players.

Master – smaller color gaps demand sharper focus.

Grand Master – ultimate challenge for elite eyes.
Each mode contains 10–30 questions. Score and time are recorded for every run.

Automatic question generation
Test colors are built on the fly. A target shade flashes briefly, then disappears; pick the identical hue from several near‑matches.

Side‑by‑side answer review
After finishing, view each question’s correct color beside your selection, plus the time spent—perfect for self‑analysis.

History management
All completed tests save automatically. A dedicated History screen lists every run by mode, with personal bests pinned to the top. Practice (free) mode is excluded from history.

Online leaderboards

Top 10 for every mode, ranked by score then by faster time.

Your entry is highlighted with a gold outline and auto‑scrolled into view.

If offline, the most recent leaderboard cache is shown; data refreshes only after 30 minutes to save bandwidth.

Readable time format
Leading zeros are trimmed for clarity—00:00:19.63 → 19.63, while 01:02:19.63 stays unchanged. Maximum shown time is 99:59:59.99.

Smart data saving
Results store locally and upload to the cloud only when they beat your previous record. Offline scores sync automatically once a connection returns.

User‑centred interface
A countdown timer is visible during tests; the summary screen displays total score and elapsed time. Exiting mid‑test safely cancels timers and returns to the home screen.

Extra touches

First‑launch tutorial explains every menu.

Home screen badge alerts you when a new leaderboard record is posted.

Mode selection buttons clearly label each challenge tier.

■ Privacy & network handling
Color Master collects no personal data. The app detects connectivity to manage leaderboard uploads gracefully. All data traffic uses Firebase; the entire game remains playable offline.

■ Who is it for?
Designers seeking sharper color discrimination

Anyone wanting a keener eye for detail

Players who enjoy quick concentration challenges

Competitors motivated by global rankings

■ Supported languages
Korean, English, Japanese, German, French, Spanish, Hindi, Russian, Indonesian, European Portuguese, Brazilian Portuguese, china

Color Master goes beyond quizzes, acting as a comprehensive training tool for color perception and focus. Continuous updates aim to deliver the best possible user experience.