All our paints are fully matt and leave a smooth matt surface. If the surface is subjected to dirty hands or splashes, the wall can be wiped with a damp cloth to prevent the dirt from sticking. The matt surface is resistant to gentle wiping, so it's fine to clean off the dirt and splashes caused by normal life. You can also wash a matt wall with water. However, don't worry if the color darkens when it gets wet. A plastic-free paint surface will pass water and thus darken, but the color will even out as it dries.  The paint will not come off when washed.  However, glossy paint copes better with hard wear and tear than matt paint.