Used the color sunflower yellow to dye two cotton sweaters that had started to fade. The result turned out really well! We have previously refreshed cotton clothes with orange and purple (deep violet) and have also been very satisfied with those. To achieve a good result, it is important to follow the instructions carefully. Some may find that there is a lot of color left in the washing machine after dyeing, but it goes away if you follow the instructions for cleaning the machine.