Winter Sky is the medium blue color, dyed with indigo. I switched over from black beans to indigo in the late summer of 2017 and have been slowly converting ALL my blues. Indigo is light-fast and washes well. I treat it with two finishing steps after dyeing. First I soak it in a vinegar-water bath to balance the PH, a standard process. Next I soak the yarn in Eucalan to soften and condition the yarn.
While the yarn is rinsed well and conditioned, it’s normal to have some “cracking.” This is when a little of the color comes off onto your hands while you knit. It washes off hands easily and after you block your finished project, it won’t bleed onto your skin or clothes.