There isn’t one universal color rule—this is mainly a creative choice. A person in a landscape will usually attract attention anyway, because viewers naturally notice people first.

A useful approach is to decide between two goals:

1. blend into the scene Use clothing with tones similar to the environment and keep saturation low. Muted, subdued colors help the person feel integrated into the landscape instead of dominating it.

2. create a clear accent If you want the person to act as a deliberate visual anchor, choose a color that contrasts with the surroundings.

For less distraction, simple clothing usually works better than busy designs. Strong patterns tend to pull attention away from the scene, while solid or subtle patterns keep the image cleaner.

So the practical answer is: first decide how visible you want the person to be, then choose either harmonious/muted colors to blend or contrasting colors to stand out. Avoid loud patterns if the landscape is meant to remain the primary subject.