1. Open the game "Just Color!" on your mobile device.

2. Select a level from the available options to begin playing.

3. Once the level loads, observe the reference image displayed at the top of the screen.

4. Below the reference image, you will see a 3D object that needs to be colored to match the reference.

5. Use the sliders at the bottom of the screen to adjust the color of the object.

6. Each slider represents a different color parameter such as hue, saturation, or brightness.

7. Drag the sliders left or right to change the color values of the object.

8. Continuously compare your object with the reference image as you adjust the sliders.

9. Fine-tune the color using all sliders until your object closely matches the reference image.

10. When the color is matched accurately, the game will automatically detect the match and the level will be completed.

11. You will then move to the next level, where a new object and reference image will appear.

12. Repeat the process of adjusting sliders and matching colors for each new level.

13. Enjoy the variety of objects and color challenges as you progress through the game.

14. Try to complete each level with precision and unlock new puzzles as you go.