The color left over after washing the impurity doesn’t affect it. For example, after washing the stain of menses, the color may not go all of it but the piece of cloth is considered pure after washing it.

If there is a stain of impurity on the clothes and you throw it in the washing machine but afterwards the stain is still visible. Can you pray in it or do you have to wash it again with hands or something else? (or is this obsessive)?

Purity |