A random target colour appears at the top and you have five paint pots to match it: red, yellow, blue, white and black. Move the sliders to set how much of each goes into the mix, watch the match percentage climb, and submit when you are happy with it.
Only the ratio between the sliders matters, so 50/50 and 100/100 give the same colour. The paints mix as plain averages of their RGB values — red is 239,68,68, yellow 234,179,8, blue 59,130,246, white 240,240,240 and black 55,65,81. The match percentage is 100 minus the straight-line RGB distance to the target divided by 4.41, so a perfect match is 100. It turns green at 80 and above, amber from 50, and red below.
The target is any random RGB value, but your mix is limited to weighted averages of five fixed paints. Many targets sit outside that range, so a high-80s or low-90s match is often the best available.
No. Each paint counts as a share of the total, so doubling every slider changes nothing about the resulting colour.
Yes — on a touch screen the game shows on-screen buttons, and games played with a mouse work by tapping.