The color-matching game

Train your eye to see color.

A color appears. You rebuild it by eye with three RGB sliders. Sounds simple — until the gradients start. Daily challenges, brain drills and live online duels sharpen your color vision one round at a time.

1000
Points for a perfect eye
7
Brain-training drills
3
Fresh dailies, every day
Gradients RGB — matching a gradient with RGB sliders
Works offline No account required Game Center leaderboards No third-party ads or tracking
How it works

Three sliders. One perfect match.

Every round is a conversation between your eye and your fingers — no color theory degree required.

1

See the target

A solid color on easy, a flowing three-stop gradient on medium, a five-stop radial monster on hard. Same target, every round: match it.

2

Mix it by eye

Slide red, green and blue until your swatch disappears into the target. Stuck? Spend diamonds on a hint that fixes your most-wrong channel.

3

Score up to 1000

Check your match and get a per-channel accuracy breakdown. Great rounds earn diamonds; perfect rounds earn achievements.

Features

A gym for your color vision

From a calm daily ritual to sweaty real-time duels — every mode trains the same muscle: seeing color precisely.

🗓

Daily challenges

Three fresh colors a day — easy, medium, hard. The same for everyone on Earth, one attempt, no hints. Keep the streak alive for growing diamond rewards.

🧠

Brain training

Seven drills for memory, mental color math and speed — rebuild a color from memory, mix two in your head, or survive a 20-question blitz.

⚔️

Online duels

Real-time matches via Game Center. Same target, same clock — fastest, sharpest eye wins and climbs the global leaderboard.

📈

Color IQ

An adaptive rating of your color acuity from 0 to 1000. It moves with your sustained skill, not one lucky round — watch it climb as you train.

🎯

Perception profile

The app quietly learns how your eye reads each channel — "you undershoot blue by 8%" — and tells you exactly what to train next.

🏆

Achievements & streaks

Perfect Round, Week Streak, Sharp Eye and more — plus daily and high-score leaderboards to give your training a scoreboard.

Brain training

Seven drills. One sharper eye.

Color vision is a skill, not a gift. Each drill isolates one part of it — visual memory, mental mixing, split-second discrimination — and turns it into a five-round session you can finish with your morning coffee.

Your Color IQ and perception profile update as you play, so progress is a number you can watch move.

Memory — see it for 4 seconds, rebuild it blind
Blitz — 20 rapid-fire "which is redder?" calls
Color IQ — adaptive acuity rating
Negative — set the exact opposite
Mix — blend two colors in your head
Midpoint — fill the missing gradient stop
2-Back — recall the color from two steps ago
See it in action

Calm to look at. Hard to master.

Gradients RGB home — Training, Daily, Brain and Online modes
Four ways to play
Matching a gradient with RGB sliders
Match gradients by eye
Brain training menu with seven drills
Seven brain drills
Blitz mode — which has more red?
20-question blitz
Pricing

Free to play. Pro to flow.

Every mode is free. Pro removes the promo breaks between rounds and starts you with a diamond bonus.

Free

$0
The whole game, no account needed.
  • Training, Daily, Brain & Online modes
  • Color IQ & perception profile
  • Earn diamonds every round
  • Leaderboards & achievements
Get started

Diamonds

Packs of 50–500
Optional top-ups for hints.
  • Hints fix your most-wrong channel
  • Earn them free by playing well
  • Daily streak pays up to 40 a day
See in the app

Prices shown in the App Store. Subscriptions auto-renew until cancelled. Cancel anytime in your Apple ID settings.

FAQ

Questions, answered

Is Gradients RGB free? +

Yes — every mode is free to play, with no account and no third-party ads. An optional Pro subscription removes the short promo screens between training rounds, and diamond packs are optional top-ups for hints you can also earn just by playing.

What is Color IQ? +

An adaptive rating of your color acuity from 0 to 1000. Each round pulls your rating toward that round's score, so it reflects sustained skill rather than one lucky match. Train regularly and watch it climb.

Do I need an internet connection? +

Only for online duels and leaderboards. Training, daily challenges and all seven brain drills work completely offline.

How do online matches work? +

Matchmaking runs through Apple's Game Center — no account creation, no chat, no personal data exchanged. Everyone gets the same target and the same clock; scores go to the global high-score leaderboard.

Is it good for kids? +

The game is rated 4+ and there is nothing to read, watch or chat about — just colors. Purchases sit behind the App Store's standard parental controls.

Can I cancel Pro anytime? +

Yes. Pro is a standard App Store subscription — manage or cancel it anytime in your Apple ID settings, no questions asked.

How sharp is your eye, really?

Find out in one round. Download Gradients RGB and match your first color in seconds.

Download on the App Store