Daily drill
Color Gym
Two minutes a day. Mix the target with four tubes, then see where your eye is off.
This is a simulation of mixing on screen. Real paint will differ, so use it to train your eye, not to replace a test swatch.
Today's target
Your progress
0 of the last 30 results saved on this device only.
Finish 8 rounds to see your weak spot.
About Color Gym
Color Gym is a short daily drill for painters. Each day everyone gets the same target color, picked from colors that real acrylic tubes can reach. You mix it on screen with four tubes using sliders, then check your mix. After the daily round you can keep going with unlimited practice rounds. No account is needed, and your last 30 results stay on this device only.
How the score works
Your mix and the target are compared on three separate things painters judge by eye: hue (which color family it leans toward), value (how light or dark it is) and chroma (how vivid or dull it is). Each gets a plain-language note, such as "too dark" or "too dull". The score starts at 100 for a perfect match and drops as the combined difference grows. After you check, Chromilla shows its own best recipe for the same tubes and how far your proportions were from it.
Why train your mixing eye
Most mixing mistakes come from misjudging one of those three things, often value or chroma rather than hue. Practicing with quick feedback helps you notice which one is off and what to add next, so you spend fewer rounds correcting a mix at the easel. It is a simulation, so treat it as practice for your eye and still test real paint on a swatch.